1 This is the Change Log for PHPlot.
2 The project home page is http://sourceforge.net/projects/phplot/
3 -----------------------------------------------------------------------------
5 2010-10-03 (lbayuk) ===== Released as 5.2.0 =====
6 * phplot.php: Updated version
7 * README.txt: Updated for new release
8 * NEWS.txt: Add text for new release
9 * Makefile: Removed HorizontalBars.txt from release. This is now all
10 documented in the reference manual.
13 * Rewrite color handling. Default and specified colors are now validated,
14 converted to RGBA arrays, and saved. The colors indexes are not
15 allocated until graph drawing time. Unneeded colors are not allocated.
17 Fix bug 3045131 "SetTransparentColor problems": Transparency setup is
18 deferred to graph drawing time, after most other colors are allocated.
19 Fixes SetTransparentColor order dependency, and works with data colors.
21 Fix bug 3049726 "Optimize color allocation": Colors allocation is
22 deferred to graph drawing time, and colors for most elements are only
23 allocated if needed. In particular, the data colors and dark colors,
24 which used 32 slots, now only get defined as needed.
26 Feature request (partial) 3077554 "Finer control over plot element
27 colors": The colors of the main, X, and Y titles can now be controlled
31 New internal functions:
32 GetColorIndex(), GetDarkColorIndex()
33 Allocate pre-parsed colors for elements.
35 Does the deferred color allocation and defaults.
36 NeedDataDarkColors(), NeedErrorBarColors()
37 Called by graph drawing functions if those colors are needed.
38 GetDataColor(), GetDataErrorColors(), GetBarColors()
39 Custom or standard data color assignment for most plot types.
41 Shorten an array. Used to limit data color allocation.
43 Removed internal functions:
44 SetIndexColor(), SetIndexDarkColor()
45 Unneeded. Color handling is now in two separate phases.
47 Removed internal member variable:
49 PHPlot no longer calls SetDataColors before plotting, so this
50 variable is not needed to preserve the default alpha.
52 New internal member variables:
54 Saves color value from SetTransparentColor. For bug 3045131.
55 x_title_color, y_title_color, ndx_x_title_color, ndx_y_title_color
56 For title colors. DrawXTitle and DrawYTitle use them now.
58 Changed internal member variables:
59 i_border, plot_bg_color, bg_color, label_color, text_color, etc.
60 All variables for colors now always hold a parsed 4-component
61 (RGBA) color specification as an array, and are no longer
62 statically initialized to a color name.
65 SetXTitleColor(), SetYTitleColor()
66 These can be used to make the 3 titles have different colors.
69 * Don't let SetXDataLabelPos() accept 'xaxis' or 'all' as valid.
70 Don't let SetXTickLabelPos(), SetYTickLabelPos() accept 'all' as valid.
71 These were never implemented and never documented.
74 * Feature request #3073679 "Stacked bar plots with negative values":
75 Allow stacked bar plots (vertical and horizontal) to work with negative
76 values. Changed FindDataLimits() to not take abs() values for
77 stackedbar when calculating the data range. Changed DrawStackedBars()
78 and DrawHorizStackedBars() to handle negative values, including proper
79 label positions. The first non-zero value in a row sets the direction
80 of the bar. Mixing positive and negative values within a row works but
81 the results are not useful.
83 * New internal DrawBar() moves common code from 4 bars and stackedbars
84 drawing functions and makes it easier to deal with shading vs bar
88 * Fix bug 3074402 "Fix Y axis default for horizontal plots":
89 Make the default axis positions symmetrical for vertical plots
90 (X and Y) and horizontal plots (Y and X). This fixes the problem
91 with horizontal bar/thinbarline plots that have negative data,
92 where the Y axis stayed on the left and the bars went rightward.
95 * Fix bug 3056991 "Internal methods should be 'protected'":
96 Changed CheckDataArray(), number_format(), FindDataLimits(), and
97 DrawBackground() to be 'protected'. The test suite no longer calls
98 these directly. For SetIndexColor(), SetRGBColor(), DrawText(),
99 SizeText(), xtr(), and ytr(), left these as public with a comment
100 indicating they should be treated as protected.
102 * Fix bug 3057000 "Review 'deprecated' methods":
103 + Changed deprecated method SetNewPlotAreaPixels() to just call
104 SetPlotAreaPixels(). It was suspicious as coded, and was found
105 to be equivalent to SetPlotAreaPixels().
106 + Removed SetColor(), which didn't do anything. It was calling
107 SetRGBColor and discarding the result. After reviewing the
108 history of this in all CVS versions, it does not seem to have
109 ever been coded correctly, so there is no harm in removing it.
110 + All other deprecated methods seem OK and are left as is.
112 2010-08-30 (lbayuk) ===== Released as 5.1.3 =====
113 * phplot.php: Updated version
114 * README.txt: Updated for new release
115 * NEWS.txt: Add text for new release
118 * Fix bug 3051832 "Let PHP/GD find the font file":
119 Instead of checking for file existence, PHPlot now uses a non-drawing GD
120 operation to validate a TrueType font in SetFontTTF(). This allows GD to
121 use its internal search path, making it likely that fonts can be found
122 without needing a platform-dependent path in your script. Full paths
123 will still work, so there is no compatibility issue.
125 * Fix bug 3051906 "Better choice for default TT font":
126 Removed "benjamingothic.ttf" as the default TT font setting. This has
127 not been included in PHPlot since 2004. Changed SetFontTTF() to call
128 new GetDefaultFontTTF(), which will try a number of sans-serif font
129 names the first time it needs a default TT font. Considering the above
130 fix to finding fonts, this has a good chance of finding a working
131 font. It is known to work on Windows and some Linux distributions.
134 * Makefile: Removed phplot_data.php from list of files to release.
135 Reference bug report 3048267. This file has not been maintained or
136 tested, and has bugs. It will remain in CVS, but not be included
140 * Change new DrawLinePoints(). It does not have to check and
141 handle error bar plots, as DrawDots and DrawLines will do that.
144 * Rewrote DecodeDataType(). Previous implementation was hard to
145 extend and inefficient. Now it uses new class variables (not a
146 returned array) and is only called once, by DrawGraph. Changed all
147 users of data_type to use the new variables.
149 In CheckDataArray(), calculate data_columns properly for
150 text-data-single data type (pie chart) too. Simplify DrawPie
151 to use this, and merge 2 of the 3 cases.
153 Have a single function handle each plot type, so it can properly
154 check the data type and report a correct error message showing
155 all supported types. For example, DrawBars is now the entry point
156 for both bars and horizontal bars; DrawGraph does not directly
157 call DrawHorizBars. Similar for DrawStackedBars and
158 DrawHorizStackedBars. Lines, Points, and Linepoints also now
159 have a single function each, dispatching to others as needed.
160 (These changes were split off from an upcoming, larger change.)
163 * Fixes to SetDataValues: need to clear out the 2 arrays before
164 setting values in a loop, else if the function is used more than
165 once then old values will remain.
166 Move records_per_group calculation outside the loop.
167 (These were split off from upcoming, larger changes.)
169 * Part 4 of horizontal plots: implement horizontal thinbarline plots.
170 Added new data type 'data-data-yx' (label, Y, X1, X2, ...).
171 DrawThinBarLines() now draws either vertical or horizontal plots, and
172 supports data types text-data, data-data, text-data-yx, data-data-yx.
174 Fixed DecodeDataType() to handle text-data-single too, for completeness.
176 * Fix for over-padding style and color arrays. These were padded to
177 records_per_group, but that is the maximum data array row size.
178 The number of actual data sets is less, and depends on the data type.
179 Calculate the correct number as data_columns at the top of DrawGraph,
180 and use that to pad the arrays. Also moved early error checking in
181 DrawGraph() into new CheckDataArray().
184 * Code cleanup. This is a large change to unify the comment and
185 coding stye used in PHPlot. The PEAR style guide is being used
186 as a reference, but PHPlot will never be 100% compliant.
187 This patch introduces no functional changes at all.
188 - Limit line length to 110.
189 - Remove obsolete, partially implemented Doxygen comments.
190 - Add descriptive comment above functions where missing.
191 - Use consistent comment markers and control structure spacing.
192 - Remove ctags-confusing end of function comments.
193 - Rewrote a few if/else blocks for cleaner logic.
194 - Re-order some functions for consistency (X, then Y).
197 * Implemented horizontal stacked bar plots:
198 Use the same data type introduced for horizontal bars, 'text-data-yx',
199 and the same plot type 'stackedbars', to make a horizontal stacked bar
200 plot. Data value labels, both at the ends of the bars and within the
201 bars ('plotstack' labels) are available with horizontal stacked bars.
203 * Internal function DrawDataLabel() is replaced by DrawDataValueLabel(),
204 with different usage. The new function can also check to see if a label
205 fits in the allocated space.
207 * Fixed the text size check in stacked bar plots for data value labels
208 within the bars. The check only worked correctly for 0 degree labels. It
209 now works with any text angle. It suppresses the label if it is too high
210 (for vertical stacked bar plots) or too wide (for horizontal stacked bar
211 plots) to fit in the bar segment to which it belongs. Note that it only
212 checks in the bar direction. If the text is too wide (for vertical bars),
213 or too high (for horizontal bars), it will still be plotted, but will
214 cross the sides of the bar.
217 * Allow callbacks to return a value (to support new data_color callback).
218 * Feature request 3034164 "Extended control of data colors":
219 Define new callback 'data_color' for picking the data color.
220 Changed internal plot drawing functions DrawDots, DrawLines, DrawSquared,
221 DrawBars, DrawStackedBars, DrawDotsError, DrawThinBarLines,
222 DrawLinesError, and DrawHorizBars to use the data_color callback
223 (if defined) to select the data colors.
224 * SetRGBArray code cleanup (no functional changes).
227 * Fixes for error bars:
228 Code cleanup in DrawYErrorBar(), with no functional change.
229 Suppress duplicate drawing of error bars with 'linepoints' error plots.
230 This was already fixed for data labels. Now error bars will only be
231 drawn by the 'points' part, not the 'lines' part. There should be no
232 visible changes to plots. (This is needed for a future change).
235 * Horizontal bar charts (still an experimental feature) can now have data
237 * HorizontalBars.txt: Fix incorrect description of bar direction. Add
238 text explaining the new data value labels.
240 2010-06-29 (lbayuk) ===== Released as 5.1.2 =====
241 * phplot.php: Updated version
242 * README.txt: Updated for new release
243 * NEWS.txt: Add text for new release
246 * Feature request 2885930 "Horizontal Bars":
247 Horizontal bar charts are implemented, as an experimental feature.
248 A new data type 'text-data-yx' was added, which works with
249 'bars' plot type to produce a horizontal bar chart from a data
250 array with X values for each Y value. Changes were made to
251 FindDataLimits, CalcMargins, CalcPlotAreaWorld, CalcBarWidths,
252 and CalcMaxDataLabelSize to handle the new data type. Other
253 changes were made to handle label position defaults and grid
254 defaults. New drawing functions were added for horizontal bars.
256 * HorizontalBars.txt: new documentation file for experimental feature.
257 * Makefile: List new documentation file.
260 * Each plot-type drawing function now checks that it is getting a data
261 type that it knows how to handle. A new internal function unifies the
262 checking and error message. (This is associated with an upcoming,
265 Compatibility: If you were using an invalid data type for a plot type
266 whose function did not check, will now get an error.
268 * Removed some dubious code from DrawLines() and DrawSquared() and
269 rewrote comments there. The code initialized lastx[0] and lasty[0],
270 but lasty was mapped using the X (rather than Y) function. This was
271 obviously wrong, but closer inspection showed that the values were
272 never, used so the code was removed.
275 * Truecolor.txt: removed
276 * Makefile, README.txt: Removed reference to Truecolor.txt. Full
277 documentation for truecolor images is now in the Reference Manual.
280 * Fix bug 3010116 "Bad rendering of title in multi-plot image
282 Make sure the main title is drawn only once. (If drawn multiple
283 times with TrueType font text, the anti-aliasing effects result
284 in poor quality text.)
287 * Improvements to truecolor support (from feature request 2947679):
288 Truecolor support is now better integrated. The derived class only
289 has the constructor now, and the base class itself provides the alpha
290 color component support through the internal functions SetIndexColor(),
291 SetIndexDarkColor(), and SetRGBColor(). This means alpha channel
292 works with palette images too (in so far as GD supports this).
294 * Truecolor.txt: Updated per changes to truecolor support.
296 * Image tiling with mode 'scale' in tile_img(), used with image and
297 plot area backgrounds, now uses imagecopyresampled() rather than
298 imagecopyresized(). They are the same with palette images, but the
299 resampled copy gets better results with truecolor images.
302 * Feature request 3002606 "Add to plot and image border options":
303 Added options 'right', 'top', and 'bottom' to SetPlotBorderType()
304 (existing options are 'left', 'sides', 'none', and 'full'). This
305 now also accepts an array of the above options, giving complete
306 control over which sides to draw.
307 Added option 'solid' to SetImageBorderType() to use the actual
308 color set with SetImageBorderColor(), rather than the darker
309 shade as type 'plain' does (for some reason).
310 New function SetImageBorderWidth() sets the width of the image
311 border. The image border width is now accounted for in margin
312 calculations, although existing plots will not change.
314 2010-04-04 (lbayuk) ===== Released as 5.1.1 =====
315 * phplot.php: Updated version
316 * README.txt: Updated for new release
317 * NEWS.txt: Add text for new release
320 * Remove & from argument in SetDataValues(). The data array is not
321 modified and does not need to be passed by reference. (There is
322 no performance advantage, either.)
325 * Feature request 2947679 "Support for alpha blending/Truecolor":
326 Implemented truecolor image support with a new class
327 PHPlot_truecolor, extended color specifications to allow
328 specification of an alpha value, and added a new optional parameter
329 to SetDataColors for a default alpha value for all data colors.
330 This feature is *EXPERIMENTAL* (see next item).
332 * Truecolor.txt: New file, documentation for the new truecolor capability.
333 (The Truecolor feature is experimental, which means it is subject to
334 change in incompatible ways and the documentation has not yet been
335 incorporated into the PHPlot Reference Manual.)
337 * Makefile: Include new documentation file in release.
340 Fixed bug 2976735 "Improvements and fixes for 'area' plots":
341 Rewrote DrawArea() function which handles 'area' plot.
342 Part 1: This is related to feature request 2947679, Truecolor support
343 with transparency. The area plot function was filling each area from the X
344 axis up to the Y value, resulting in area overlaps. This wasn't a problem
345 with opaque colors, but with transparency, the overlapping areas resulted
346 in changed colors. The rewritten function fills the area between each line
347 instead of from each line down to the X axis. Plots with opaque colors
349 Part 2: Area plots now work when the X axis is moved up with
351 Part 3: Fixed FindDataLimits() for area (and stackedbars too) to
352 take absolute values of Y values. The drawing function was doing this,
353 but not FindDataLimits, resulting in incorrect limits if any Y<0.
354 Part 4: The rewritten DrawArea() also handles a new plot type
355 'stackedarea'. This is an area plot where the Y values are stacked,
356 similar to 'stackedbars'.
357 Note: As part of the changes, it is now an error to try an area plot
358 with an unequal number of Y points for each X.
361 * Feature request 2973995 "Add y-Data to Stackedbars":
362 Implemented Y Data Labels for Stacked Bar charts (stackedbars).
363 The labels are enabled with SetYDataLabelPos, same as with bar charts.
364 There are two types of labels: above the stack with the total, and
365 within the bars at each segment. 'plotin' turns on the upper ones, and
366 'plotstack' turns both on.
369 + Removed unimplemented second argument to SetYDataLabelPos.
370 + Fixed questionable logic in SetYDataLabelPos when given an argument
371 that belongs with SetYTickLabelPos.
372 + Fix comments at top of plot-type Draw functions.
374 * Fix for bug 2974639 "Stacked bars plot breaks with X axis != 0":
375 Stacked bar plots with non-zero X axis position no longer break apart
376 into segments with gaps. The bars are drawn up from the X axis, and
377 any segments or partial segments below the X axis are not drawn.
380 * Change related to feature request 2947679 - Fix 'dot' point shape:
381 Use imagefilledellipse(), not imagefilledarc(), when drawing the 'dot'
382 point shape. The fix was needed for future support of truecolor images
383 with transparency, but filled dots from imagefilledellipse() look
384 better (rounder) with regular images and opaque colors.
385 Credit to mvaldez for identifying the problem and providing the fix.
388 * Fix for bug 2963757 "point_counts undefined error in 5.1.0":
389 Fixed CheckPointParams so it sets point_counts even when the point shape
390 and point size arrays are already the same size and do not need padding.
393 * Fix for bug 2938219 "Bars go in wrong direction":
394 Fixed CalcAxisPositions() to be consistent in positioning the X axis.
395 When all Y values are <0 and the Y=0 line is not part of the plot range,
396 PHPlot will now default the X axis to the top of the plot, not the
397 bottom. This fixes the problem with bars to negative Y values being
398 drawn downward if Y=0 is visible, but upward if Y=0 is not visible.
399 This also affects thinbarline plots.
400 Credit to lauryn1298 for finding the bug.
402 2009-12-24 (lbayuk) ===== Released as 5.1.0 =====
405 * Change for bug 1795971 "Fix default data colors":
406 The default Data Color and Error Bar Color arrays now have 16
407 different colors, no duplicates, and nothing so light that it
409 Using '' or False as the argument to SetDataColors, SetErrorBarColors,
410 and SetDataBorderColors now re-initializes the map to the defaults.
411 This was previously undocumented, and in some cases set the map to
412 something different from the default.
415 * Cleanup: Remove DrawAxisLegend() - empty function marked TODO,
416 not really clear what it was meant to do.
419 * Fix for bug 2914403 "Pie + X/Y titles: Undefined property error":
420 In DrawGraph(), don't try to draw X or Y titles for pie charts.
422 * Feature request 2899921: "allow different format for data and tick
423 labels"; Bug 2906436: "Fixes for X Tick Labels vs X Data Labels",
424 and partial implementation of changes from user 'adoll' regarding
427 New public functions:
428 + SetXDataLabelType() : Sets formatting for X Data Labels
429 + SetYDataLabelType() : Sets formatting for Y Data Labels (bar charts)
430 + SetXDataLabelAngle() : Sets text angle for X Data Labels
431 + SetYDataLabelAngle() : Sets text angle for Y Data Label (bar charts)
432 The defaults for these are set up to be fully backward compatible
433 with previous releases of PHPlot (except see the next item).
435 Re-used function name SetXDataLabelAngle():
436 + This has been deprecated and undocumented since 2003-12-07, and
437 used to just call SetXLabelAngle(). For new behavior, see above.
439 Changes to public functions:
440 + SetXDataLabelPos() and SetXTickLabelPos() no longer cancel each
441 other out (set the other control variable to 'none'). Instead,
442 they are both considered before plot drawing.
444 Changes to internal functions:
445 + DrawDataLabel() now uses the font, angle, and color arguments as
446 provided, and does not substitute values if they are empty.
447 + SetLabelType() now takes mode='xd' and 'yd' for X Data and Y Data
448 label formatting; 'x' and 'y' are for tick labels only now.
449 + Functions that work on Data labels now call FormatLabel() with the
450 new mode parameter value 'xd' or 'yd, and use the new
451 data_label_angle variables.
452 + New CheckLabels(), used by DrawGraph to process label parameters.
453 + CalcMargins() - Rewritten to handle changes to Tick and Data labels.
455 Changes to internal class variables:
456 + New: x_data_label_angle, y_data_label_angle
457 + Do not initialize x_tick_label_pos or x_data_label_pos, so that
458 CheckLabels() can tell if they were set or not and apply defaults.
459 + Initialize y_data_label_pos to 'none', not 'plotleft'.
460 + Add 2 more indexes to label_format[] array: 'xd' and 'yd'.
463 + Delete unused internal class variable: draw_y_data_label_lines
464 + Delete unused function SetDrawYDataLabelLines()
467 * Fix bug 1795972 "Fix default point shapes":
468 + Added 10 new point shapes to the existing 10 shapes.
469 + Changed the default point shape from all 'diamond' to a
470 selection of up to 10 different shapes.
471 + Fixed bug in the code that tried to set the point shapes
472 and sizes arrays to be the same size. This was not working,
473 resulting in unexpected point sizes.
474 + Changed default point size to 6 for all shapes. It was trying
475 to be "5, 5, 3" but due to several bugs this was not working.
476 + Do not adjust shape sizes to even numbers (was done for only two
477 shapes). Instead, consistently truncate size/2 when needed.
478 NOTE: These may change the look of 'points' and 'linepoints' plots.
480 * Changed startup initialization code:
481 + SetDefaultStyles() was doing some odd things using a variable
482 called "session_set", with comments referring to non-existent
483 session support code. This has been removed. There should be
484 no visible changes from this. PHPlot does not use PHP sessions.
487 * Fix for bug 2908256, errors in pie charts with bad data array:
488 (From a Drupal contrib module report by thekevinday.)
489 With pie charts only, a data array with no valid Y values resulted
490 in PHP error messages. All other plot types handle this by producing
491 an image without a graph.
492 Fixed DrawPieChart to behave this way too. If there are no valid Y
493 values, or if the sum of all Y values is 0, do not error out, but
494 don't draw a pie chart either.
495 Also, pie charts now ignore non-numeric Y values, like other plot types.
498 * Fix for bug 2900914 "Problem with display of 0 on Y axis":
499 Changed how X and Y values are stepped by tick intervals, to avoid
500 cumulative round-off error. This fixes the problem when Y crosses 0 with
501 a tick step such as 0.1 resulting in a long label for a very small but
502 non-zero number. Fixed DrawXTicks, DrawYTicks, and CalcMaxTickLabelSize.
503 (Originally reported by cncnet)
506 * Improve support for using callbacks to annotate plots:
507 Added new callback 'draw_all', called after all drawing.
508 Supply plot_area[] as argument to some drawing callbacks.
509 Added new method GetDeviceXY() to translate from world coordinates.
510 Allow NULL or '' for $font in DrawText() internal method, meaning to
511 use the generic font. If callbacks want to use DrawText, this
512 avoids them having to reference the internal fonts[] array.
515 * Address bug report 2886365 "Declare all functions and variables in
517 PHP5 deprecates the use of 'var' to declare a class member variable.
518 All initialized class member variables are now declared 'public'.
519 (It was tempting to make most or all 'protected' or 'private', but
520 that would likely break too much, including the PHPlot Test Suite.)
522 Most class member functions which are meant for internal use only are
523 now declared 'protected', so they cannot be called from scripts
524 (except in child classes). (Note PHP5 does not deprecate the use of
525 just 'function' to mean public, so public functions were not changed.)
526 Internal functions are those documented in the manual under Developer's
527 Guide, Internal Functions. If your code breaks because you are using
528 a method which is now protected, please post the details on the help
531 Some member variables which were set in the constructor are now
532 initialized with the class instead. (No impact.)
534 Removed commented-out, FIXME-noted code for interim labels.
537 * Bug report 2839547, allow SetImageBorderType('none') to reset the image
538 border type. Also checked for other cases where there is no reset;
539 found one that exists (Set[XY]LabelType) but needs to be documented.
542 * Added a hook $plot->locale_override which can be set to True to prevent
543 PHPlot from loading locale settings from the environment with
544 setlocale(LC_ALL, ''). This is necessary for testing PHPlot on Windows,
545 where you cannot force a locale with an environment variable. It might
546 also be needed for people who want PHPlot's locale to differ from the
549 2009-06-12 (lbayuk) ===== Released as 5.0.7 =====
552 * Change PHPlot license to LGPL, per Afan.
553 phplot.php, phplot_data.php - Change license notice.
554 rgb.inc.php - Change top comments and remove bottom marker.
555 COPYING - new file, text of LGPL.
556 LICENSE.* - removed files - old licenses.
557 Makefile - change list of distributed files.
559 * Fix for bug 2803900: SetRGBArray('large') does not work. The include
560 file defined a different array name than the main script expected.
561 (This bug seems to have happened over 8 years ago.) Fixed the array
562 names to match. Also removed the ./ prefix from the included filename
563 so it will be found if on the include path but not in the script
564 directory. Also added error check if the rgb.inc.php include file
565 is needed and not found.
568 * Added new feature to allow partial margin or plot area specification.
569 You can omit, or specify as NULL, any of the 4 arguments to
570 SetMarginsPixels() or SetPlotAreaPixels(), and this means PHPlot
571 should use the automatically calculated margin on that side.
572 Credit to adoll for this feature.
575 * Fix for bug 2791502 "Error plots treat missing Y values as 0":
576 Plots with data type data-data-error now support missing Y values,
577 instead of treating them as 0. This works with lines, points,
578 and linepoints plot types, and also honors SetDrawBrokenLines.
581 * Fix for bug 2792860 "Wrong DataLabelLines with missing Y":
582 Do not draw X Data Label Lines at points with missing Y values.
585 * Fix for bug 2786350 "Missing Y data results in bad auto-range":
586 Rewrote FindDataLimits to ignore missing Y values, rather than
587 treating them as if 0, for calculating range.
588 Bug report and analysis by mrten.
590 * Fix for bug 2786354 "Incorrect auto-range for data-data-error":
591 For data-data-error data type, apply the positive and negative error
592 amounts for each Y point to that point only, rather than applying the
593 largest errors to the overall minimum and maximum Y value for the row.
595 Note: The two fixes above can change existing plots which rely on
596 automatic Y range calculation. The first fix affects plots with
597 missing Y values and min(Y)>0. The second fix can affect plots using
598 data-data-error data type and different error values for different
599 points. In both cases the new Y range can be smaller than before.
601 2009-01-20 (lbayuk) ===== Released as 5.0.6 =====
604 * Fix for bug 1891636 "Misaligned TTF X Labels":
605 PHPlot was using the actual bounding box of each line of text
606 to allocate space and set the text positioning, but was ignoring the
607 fact that the text baseline is not the same as the bottom of the
608 bounding box. This resulted in uneven alignment of the X labels if
609 they had different heights (for example, month names Jul and Aug).
611 PHPlot now calculates the size of text for allocation (SizeText) using
612 the descenders on the last line, and calculates the size for drawing
613 (DrawText) only to the baseline. PHPlot also now uses a fixed line
614 spacing for each line of text in a font, rather than the actual text
615 height. This allows separately drawn multi-line labels to align.
617 * Changes to line spacing when using multi-line labels:
618 PHPlot was using the class variable line_spacing to mean the
619 number of pixels between lines of multi-line labels. This made the
620 spacing too small for larger fonts, and it was not possible to adjust
621 line spacing for different types of text.
623 PHPlot now interprets line_spacing as the number of pixels only
624 for GD text, and as a scale factor for the font's built-in line
625 spacing for TrueType text. In addition, a new optional argument is
626 added to SetFont, SetFontGD, and SetFontTTF to set a line spacing
627 specific to that type of text.
629 * Changes had to be made to the legend drawing code to accommodate the
630 changes to font handling.
632 Note: The line spacing change results in slightly looser spacing on
633 multi-line TrueType text labels, and slightly taller legends, compared
637 * Interim fix for bug 1932571 "Data-Data Plot fails with same X values".
638 PHPlot will no longer hang when the range of X values is 0 (that is, when
639 x_min == x_max). It will arbitrarily set an X range of 1, so the
640 calculated tick step is not 0. This is a temporary fix. Work on a smarter
641 X and Y range calculation is in progress, which will handle edge cases
642 like this better, but it isn't ready and this bug has been open too long.
643 Credit to andyl for finding the bug.
645 * Fix font path: Use DIRECTORY_SEPARATOR constant not '/'.
647 Extended the label formatting capabilities, adding 'printf' and 'custom'
648 types, added a prefix and suffix for 'data' type, and allow format controls
649 to be included in SetXLabelType and SetYLabelType.
652 * Added 'printf' label type. The caller specifies the print format as the
653 2nd argument to SetXLabelType or SetYLabelType (default '%e').
654 $plot->SetXLabelType('printf', '%5.2f');
656 * Added 'custom' label type. The caller supplies a callback (typically a
657 function name) and optional pass-through argument as the 2nd and 3rd
658 arguments to Set[XY]LabelType. The function is called as $f($value, $arg)
659 to return the formatted $value.
660 $plot->SetXLabelType('custom', 'myfunction', $arg_value);
662 * In addition to Set[XY]TimeFormat, the format string for type 'time' can
663 now be set as the 2nd argument to Set[XY]LabelType.
664 $plot->SetXLabelType('time', '%H:%M');
666 * In addition to SetPrecision[XY], the precision for type 'data' can now be
667 set as the 2nd argument to Set[XY]LabelType. A 3rd and 4th argument
668 can supply a prefix and suffix for 'data' formatting. (All optional)
669 $plot->SetXLabelType('data', 2, '$', 'US');
672 * Class variables x_precision, y_precision, x_label_type, y_label_type,
673 x_time_format, and y_time_format have been removed.
675 * New class array variable label_format[], with elements 'x' and 'y' which
676 are arrays for label formatting. Elements in the sub-arrays are not
677 initialized until needed.
679 * New function SetLabelType, which implements Set[XY]LabelType now.
681 * FormatLabel() was rewritten to support the new label formatting.
684 * Any code that directly references class variables related to label
685 formatting will break, except for data_units_text. Use the documented
686 function methods instead. Setting data_units_text as a suffix is
687 deprecated but still works.
689 * The 'data' type precision for 'Y' is still used for pie chart labels.
692 Multiple comment spelling error fixes. No functional changes.
695 Changes to allow mixing GD fixed-font text and TrueType Font (TTF) text
697 (This change came from work done trying to fix TTF text positioning,
698 where it looks like additional information needs to be stored for TrueType
699 fonts. The old font data structure was awkward to extend, and allowing
700 mixed GD/TTF text was on the to-do list anyway.)
703 * SetFontGD(), SetFontTTF(): New functions to set a font, with type.
704 * SetFont(): Now calls SetFontGD or SetFontTTF depending on $use_ttf.
705 These changes should be fully compatible with existing programs.
708 * Updated comments explaining SetUseTTF() now sets the default type
709 (not the only type) of text used.
710 * Put all the font data into a class array. (Replaces $this->generic_font
711 with $this->fonts['generic'], etc.)
712 * ProcessTextGD() and ProcessTextTTF() now take the font array as one
713 argument, rather than separate arguments for font path and size.
715 2008-01-13 (lbayuk) ===== Released as 5.0.5 =====
716 * phplot.php: Updated version
717 * README.txt: Updated for new release
718 * NEWS.txt: Add text for new release
719 * Makefile: Remove 'Callbacks' from release target, as this material is
720 now in the reference manual.
723 Copyright updated to 2008 and PHP4 no longer listed as supported.
725 Major rewrite of the margin calculation functions to address multiple
726 problems. Fixes for bugs 1856207 "Margin error with 'xaxis'/'yaxis'
727 position, 1843012 "Make margins, drawing consistent", and 945439
728 "x_tick_label_height not set correctly".
730 Note: These changes are inter-dependent and cannot be split up.
732 * Defer all calculations to DrawGraph time, to eliminate order dependencies.
733 These functions now just store their arguments in the object, and all
734 calculations happen later:
735 + SetXAxisPosition, SetYAxisPosition
737 + SetPlotAreaPixels (Stores margins, not area, now.)
739 + SetXTickIncrement, SetYTickIncrement
741 * A new callback 'debug_scale' was added to trace the margin and scale
744 * CalcMargins was rewritten. Actual sizes of tick and data labels are now
745 used, rather than guesses like "use size of biggest Y value". A minimum
746 value (3 x safe_margin, or 15 pixels) applies to each margin.
748 * FindDataLimits no longer needs to find the longest data label, since
749 CalcMargins now does that more precisely.
751 * DrawXTitle and DrawYTitle now use position offsets calculated by
752 CalcMargins. Note: These titles are now offset from the plot area,
753 not the image area. The titles will move if you had set the plot area
756 * DrawYTick, DrawXTick rewritten to use pre-calculated offsets, and common
757 code moved to new CalcTicks().
759 * DrawXDataLabel: Use pre-calculated offsets for text.
761 * DrawGraph: Rewrote top section (before drawing anything) to do the
762 calculations in the proper order, unconditionally.
764 * Class variables removed:
765 x_label_inc, y_label_inc, _x_label_cnt : These were never used.
766 title_height, x_title_height, y_title_width : Now internal to CalcMargins.
767 data_limits_done : No more need to remember if FindDataLimits called.
769 * New class variables added:
770 plot_margins_set : Keeps track of user-set plot area or automatic.
771 x_label_top_offset, x_label_bot_offset, x_offset_axis_offset,
772 y_label_left_offset, y_label_right_offset, y_label_axis_offset,
773 x_title_top_offset, x_title_bot_offset,
774 y_title_left_offset, y_title_left_offset : Label offsets
776 * New internal functions:
777 CalcPlotAreaPixels : Deferred calculations taken out of SetPlotAreaPixels
778 and SetMarginsPixels.
779 CalcPlotAreaWorld : Deferred calculations taken out of SetPlotAreaWorld.
780 CalcAxisPositions : Calculate axis positions, moved from CalcTranslation.
781 CalcTicks : Calculate X and Y tick interval. This still uses the
782 same simple method (basically range/10), but now we could drop in a new
783 algorithm much more easily. This is now also used by CalcMargins.
784 Code taken out of DrawXTicks and DrawYTicks.
785 CalcMaxTickLabelSize : So CalcMargins can use the exact tick label sizes.
786 CalcMaxDataLabelSize : So CalcMargins can use the exact data label sizes.
787 DrawXTick : Code split out from DrawXTicks for symmetry with DrawYTick.
791 * Changed ProcessTextTTF() so SizeText() will return integers. It rounds
792 the calculated values up, so the bounding box really contains the text.
793 This also prevents unneeded float calculations in derived values.
796 Major rewrite of the text drawing functions to address multiple problems.
797 Note: These changes are inter-dependent and cannot be split up.
799 * Fixed bug 1813070 "Bad position for multi-line TrueType text":
800 TTF text is now drawn line-by-line, not as a block, for proper
801 alignment and positioning.
803 * Fixed bug 1813071 "Wrong title height for multi-line TTF text":
804 Corrected miscalculation of overall height of multi-line TTF titles.
805 This bug resulted in over-sized margins.
806 The height is now computed line-by-line, including the inter-line spacing.
808 * Fixed bug 1813474 "DrawText alignment arguments wrong":
809 Corrected meaning of 'top' vs 'bottom' alignment. PHPlot now follows
810 the usual conventions: 'top' alignment means top of text to reference.
811 DrawText default for vertical alignment is still 'bottom', but the
812 meaning was corrected. All callers of DrawText were fixed.
814 * Fixed bug 1816844 "Fix order dependency for setting titles":
815 Defer processing titles strings until DrawGraph(), so there is no
816 more order dependency (no need to set font before setting title strings).
818 * Fixed bug 1819668 "Horiz. align multi-line text: GD vs TTF":
819 The new text routines draw TTF text line-by-line and correctly do
820 right-, center-, and left- alignment of each line within a text block.
822 * Fixed bug 1826513 "FIXME in DrawLegend: Max label length":
823 Use actual width of widest legend line to calculate legend box size.
825 * Partial fix for bug 945439 "x_tick_label_height not set correctly":
826 In FindDataLimits(), save the longest data label, not just its length,
827 and use the actual rendered size of that string in CalcMargins() for
828 the margin calculations.
829 Also take into account which of the tick or data labels are visible.
830 This is not a complete fix, but is a significant improvement.
832 The following changes were made related to the above fixes:
834 + Replaced internal function TTFBBoxSize(), which didn't work right, with
835 SizeText(). It returns the orthogonal bounding box of a block of text,
836 and works with both GD and TTF text.
838 + DrawText() and SizeText() call a single function ProcessText(), which is
839 the only place GD text and TTF text are distinguished. (So eventually
840 we will be able to mix GD and TTF text on a plot.)
842 + New internal functions ProcessTextGD() and ProcessTextTTF() draw (or size)
843 GD and TTF text respectively. These are only called by ProcessText().
844 These are re-implementations which properly position and align text.
846 + Removed class variables title_angle, x_title_angle, and y_title_angle. The
847 titles only work at their fixed angles anyway (0, 0, and 90 respectively).
849 + Line spacing set with SetLineSpacing() now affects TTF text as well as
850 GD text. Previously, it only affected GD text. The default line spacing
851 happens to be usable for TTF text.
853 + Added new callback hook 'debug_textbox' for developing, testing, and
854 documenting. It provides access to the text area bounding box.
856 + Removed unneeded class variables x_tick_label_height, y_tick_label_width,
857 x_tot_margin, y_tot_margin.
860 * Improve error handling:
861 Internal functions PrintError() and DrawError() are now the same. Both
862 will draw the error message into the image and output it, and then
863 trigger a user-level error. If no error handler has been set, it will
864 exit, as before. But now the error message should also get logged, or
865 written to the standard error stream, depending on the SAPI in use.
866 You can now establish an error handler to catch most PHPlot errors and
867 do some cleanup before exit.
869 This fix also covers bug #1823774 "Default Font Path and Error Message
872 Fixed the return value of most PHPlot functions, to return False on
873 error, else True. Since uncaught errors are fatal anyway, this only
874 affects code with an error handler that returns, which is not
875 recommended and unsupported at this time. These changes are for
876 possible future error handling options.
879 * Fix bug 1836528 "Insufficient checking of parameter values":
880 Rewrote CheckOption to correctly validate option choices.
881 (It previously accepted substrings and other incorrect values.)
882 PHPlot methods that use CheckOption now must be called with valid option
883 values. Empty strings are also no longer accepted.
886 * Change to callbacks to support extra arguments.
887 The PHPlot class can now pass extra arguments to a callback function.
888 Callback functions now take the following form:
889 my_callback($img, $passthru_arg, ...)
890 Where '...' is zero or more additional arguments supplied by PHPlot to
891 the callback. Each implemented callback reason will define any
892 additional arguments it uses. The existing defined callbacks have not
893 changed and do not currently pass any extra arguments.
896 * Fix bug 1827263 "Spoiled up pie-chart if $val is close to zero":
897 Skip pie slices which would result in an integer angle of zero
898 degrees, because the GD arc filling function will draw a complete
899 circle for that case.
900 Credit to Viacheslav <webdeveloper.ua at gmail.com> for finding this.
902 * Removed 8 of the functions (class methods) marked 'deprecated'. Only
903 deprecated functions which seem to have been for internal use have
904 been removed. Even old scripts shouldn't be using them, and they are
905 becoming a problem to maintain.
906 Removed: SetImageArea() DrawDotSeries() DrawLineSeries() CalcXHeights()
907 CalcYWidths() DrawLabels() InitImage() DrawDashedLine().
909 2007-10-20 (lbayuk) ===== Released as 5.0.4 =====
910 * phplot.php: Updated copyright, version, and authors comments at top.
911 * README.txt: Updated for new release
912 * NEWS.txt: Add text for new release
915 * Add callbacks - experimental feature:
916 New functions SetCallback, GetCallback, RemoveCallback.
917 New internal function DoCallback.
918 Added callback hooks to DrawGraph.
920 Re-arranged code in DrawGraph to bring pie chart drawing into the main
921 switch on plot type, rather than a special case in its own block. This
922 makes it easier to follow and easier to add callback hooks.
924 * Callbacks: New file, documentation for the new callbacks feature.
925 (This won't be in the manual while it is an experimental feature.)
928 * Fix for bug 1813021: Miss-positioned right-justified vertical GD text.
929 Fixed DrawText() to correctly position 90 degree right-justified text
930 drawn in a fixed GD font. This could be seen with 90 degree Y tick
931 labels. (Found by accident while working on TrueType text problems.)
932 Also some code cleanup in DrawText: use elseif where appropriate.
935 * Code cleanup: Simplify SetIndexColor() and SetIndexDarkColor().
936 There is no need to first try ImageColorExact, then ImageColorResolve
937 if that fails. ImageColorResolve does all that for us.
939 Code cleanup: Rewrite SetRGBColor(). It now detects if an unrecognized
940 color name or color value form is used, and draws an error message.
941 Before this it would get a PHP index error and "headers already sent"
944 * Code cleanup: Remove duplicated code for loading image files.
945 Added new class-private function GetImage() which loads an image based
946 on the image type, and also returns the image size. This replaces
947 duplicated code in tile_img() and SetInputFile().
948 Also fixed comment at top of SetImageFile which said it was deprecated.
949 It isn't - it is used by the constructor. Moved the function out of the
950 'deprecated' area up to below where it is used.
952 * Code cleanup: PHPlot should not define or affect anything outside its
954 - Removed the check for __FUNCTION__ (PHP 4.3 and up). This is obsolete.
955 - Do not set error_reporting to E_ALL. Although it is recommended that
956 scripts do this, it is not the place of loaded classes to do it.
957 - Remove unused global constant TOTY.
958 - Removed constants MAXY and MINY. Global constants like this are bad.
959 These were used as magic index values into data[] to hold min and max Y
960 values for the row. Instead, put them in separate arrays which are
961 named data_miny[] and data_maxy[]. (This seems to be only used by the
962 data line drawing function.)
964 Comment cleanup: Remove one commented-out partial function DrawPlotLabel,
965 and fix another commented-out code fragment in DrawYErrorBar. Both of
966 these had unmatched braces in them which caused a balance-braces check
969 * Code cleanup, array padding: Get rid of functions outside the class
970 and remove the interim fix for PHP 5 (which changed the behavior of
971 array_merge). Rewrote external function array_pad_array() as a new
972 class function pad_array(). It does not need access to the class,
973 but I don't think PHPlot should add to the global namespace more
974 than necessary. The third argument (array to use for padding) was
975 never used, so it was removed. It always pads the array with itself.
976 It now only works on 'usual integer indexed' arrays (0-based
977 sequential integer index). The was previously required but
978 undocumented for some of the arrays (like line_widths); now it is
979 required for all style arrays and will be documented. Now we can pad
980 the array to the required length, not just N times its previous
981 length, and we don't need array_merge. Deleted external function
982 array_merge_php4() as it is no longer used.
984 Deleted PHP end marker ?>. You don't need this and it can cause
985 problems with extra whitespace in your output.
988 * Code cleanup: Fix ternary operator misuse. This doesn't change
989 behavior, but it was annoying me so I fixed it.
990 Replaced all cases of code like this: $a = ($a > $b) ? $b : $a
991 With just: if ($a > $b) $a = $b
993 * Fix Makefile 'release' target to set owner/group when creating
994 the tar file. This avoids having to run it as root, but it needs
998 * Fix for bug 1790441: Removed the PHPlot quasi-destructor function and
999 the register_shutdown_function() call which arranged for it to be used.
1000 This was preventing release of memory when a PHPlot object was unset,
1001 because the registered shutdown function held a reference to it.
1002 So rather than improving memory use, it had the opposite effect.
1003 Note: It is no longer necessary or recommended to use reference
1004 assignment ($plot =& new PHPlot) for PHPlot object creation.
1005 Thanks to annajilly for the thorough analysis, bug report, and fix.
1008 * Rewrote FormatLabel() to ignore blank label values. Adapted from a
1009 patch and feature request submitted by Gerhard Reithofer (exgerhardr).
1010 Blank labels used to produce an error if the LabelType was set to
1011 'time', and zero if set to 'data'. Now they are just ignored. This
1012 provides a simple way to have labels only at selected intervals when
1013 using time or data formats. For example, you can have a date/time
1014 label at every 10th data point by setting the labels for the other 9
1015 to be empty strings. Also: Removed $which_pos values 'plotx' and
1016 'ploty'. These were unused by PHPlot and this is an internal-only
1017 function so there is no compatibility issue. Removed error checking on
1018 $which_pos for the same reason; the error message used an undefined
1019 variable anyway so it wouldn't have worked.
1022 * Allow SetLegendStyle colorbox_align argument to be 'none', to suppress
1023 the colorboxes in the legend.
1025 Fix comment on $legend_text_align: empty means right, not left.
1027 Rewrote DrawLegend layout code to make it easier to understand. The
1028 result should be within 1 or 2 pixels of the previous size and position.
1030 * Fixes for bug 1779115: SetLegendWorld() fails on undefined vars
1031 Store the given coordinates and remember that they need to be converted
1032 from world to pixel coordinates, but defer trying to actually convert
1033 them until it is time to draw the legend. This way, there are no
1034 problems with the scale having to being set up first (which is nearly
1035 impossible to do). Made the following changes:
1037 Changed legend class variables to be uninitialized, and unset (rather
1038 than empty string) means use the defaults. Added a new variable:
1039 $legend_xy_world. If it is set, (legend_x_pos, legend_y_pos) need to
1040 be converted to pixel coords. If it is unset, they are already pixel
1041 coords (or undefined, meaning defaults).
1043 Changed usage of internal function DrawLegend(): removed all arguments.
1044 X and Y were always the class variables anyway, and now it needs to
1045 also use the new flag to tell it if X and Y are world or pixel coords.
1046 The third argument was unused.
1048 Removed third, unused, default NULL argument from SetLegendPixels and
1051 Changes to DrawLegend to convert x, y coords to pixel coordinates
1052 if they came from SetLegendWorld. Also account for new usage of
1053 the class variables: Test for unset to mean use default.
1056 * New feature: control legend text and color box alignment.
1057 Adds a new function SetLegendStyle to adjust the alignment of the
1058 text and the color boxes inside the legend.
1059 Based on part of bug 1208054, contributed by David Hernández Sanz.
1062 * Fixes for bug 1605555: Y Data Labels use wrong font and not formatted.
1063 Use y_label_font (not x_label_font) for Y Data Labels.
1064 Use the formatted value for the label, not the original text.
1065 (This applies to bar charts only, with the new Y data labels.)
1067 * One fix for bug 1208054: Localization of number format.
1068 If number formatting is enabled with 'data' format type, PHPlot previously
1069 used dot for decimal point and comma for thousands separator, and there
1070 was no way to change it.
1072 This fix adds a new function:
1073 SetNumberFormat($decimal_point, $thousands_separator)
1074 to set the separators. In addition, if that function is not used,
1075 PHPlot will now try to use locale-dependent separators. If locale
1076 information is not available, it will fall back to the old defaults
1079 Note: This change may have some negative effects. 1) If your locale is
1080 "C" or "Posix", you might not get a thousands separator now by default.
1081 You should be using a more specific locale. 2) If your PHP script is
1082 forcing a specific locale with setlocale(), PHPlot will probably undo
1083 that because it uses setlocale(LC_ALL, '') to import locale information
1084 from the environment. We have to do that, or a locale set through
1085 the environment is ignored. But it will override a manually set locale.
1087 * Fix for bug 937944: X/Y Tick Counts
1088 PHPlot could draw one too few Y tick marks, and one too many X tick marks.
1090 Changed the code to stop drawing X (Y) tick marks when the current X (Y)
1091 value exceeds the maximum X (Y) value plus a small fudge factor. The fudge
1092 factor accounts for cumulative error when repeatedly adding a delta to
1095 Notes: The bug report was writing about Y tick counts only, but X tick
1096 counts can also be wrong. The proposed fix in the bug report does not
1099 This fix changes the appearance of many plots which were missing the
1100 top-most Y tick mark. The extra X-tick mark problem is less common.
1102 ===== Released as 5.0rc3 =====
1105 * Fix for bug 1437912: x-axis label misalignment [bar charts]
1106 The calculations were redone from scratch.
1107 New control variable 'bar_extra_space', which works in addition to
1108 'group_frac_width' to control how much extra space is around the bars.
1109 Made bar widths match for 'stackedbars' and 1-bar-per-group 'bars'.
1111 NOTE: This changes the appearance of charts. bars in 'stackedbars'
1112 will now be thinner, and bars in 'bars' graphs will be thicker. I
1113 saw no reason for them being different before.
1115 This fix required fixing the positioning on the new bar data labels,
1116 which was off before. The bar data labels will now be centered.
1117 Additional fixes to bar chart data labels:
1118 For negative values, the label will center under the bar.
1119 Fixed X-adjustment to account for shading.
1120 Fixed to not suppress the data label if the value is 0.
1124 * Fix for bug 1594457: DrawError text wrap and background fix
1125 Do error image white background correctly, and word-wrap the text.
1127 * Fix for bug 1594458: Suppress lines or points in 'linepoints'
1128 Don't draw X data labels twice for 'linepoints'.
1129 Allow SetPointShapes value 'none' to suppress points, and allow
1130 SetLineStyles value 'none' to suppress lines. This allows a 'linepoints'
1131 graph to mix lines only, points only, and both on the same graph.
1135 * Fixes for bug 1446523:
1136 + Wrong variable name in deprecated SetAxisFontSize()
1137 + Fails to properly handle error if SetDataValues() was never
1138 called, or not called with a data array.
1140 * Fix for bug 1117122: Pie Chart ignores SetPlotAreaPixels
1141 Don't let DrawGraph recalculate the plot area for pie charts if the
1142 user already set it with SetPlotAreaPixels.
1144 NOTE: This fix may slightly change the appearance of some pie charts,
1145 whether or not they use SetPlotAreaPixels.
1147 * Fix for bug 1103992: Wrong max Y calculated for stackedbars
1148 Changes FindDataLimits to calculate max Y correctly. It was counting
1149 the first Y value in each record twice, which is always wrong but
1150 only affected stackedbars because the Y values are summed.
1152 * Fix for bug 1096199: Wrong error bar colors in DrawDotsError.
1153 Rewrites DrawDotsError to make it work like DrawLinesError to
1154 correctly increment the record and color indexes.
1155 Also fixes uninitialized x_now_pixels.
1157 * Fix for bug 1096197: No borders on unshaded Draw[Stacked]Bars
1158 Unshaded Bars and StackedBars covered the border with the rectangle.
1159 The fix is to draw the rectangle, then the border.
1161 NOTE: This fix changes chart appearance. Bars and Stacked Bars
1162 will now get a black border around each bar by default, if you
1163 turn off the 3D-shading. If you want borderless, unshaded bars
1164 you need to use SetDataBorderColors to set the data border colors
1165 to be the same as the data colors.
1167 * Fix for bug 1333164: Negative data values, if string variables, result
1168 in unfilled bars. The problem was a string-to-string compare of a
1169 negative number with the empty string x_axis_position. Fixed by
1170 initializing x_axis_y_pixels to 0 if SetXAxisPosition was not used.
1174 * Fix for bug [ 1161072 ] SetInputFile warning, background overwrite
1179 * fix for bug: [ 1182666 ] Y Auto-scale rounds in wrong direction
1181 * Fix for bugs 1144644 TrueType font path problems and 1106328 TTF
1182 path/filename inconsistency
1184 * Fix Bug: [ 1117120 ] X Title sizing uses Y Title font height
1187 * Error in SetLineStyles() - does not accept an array argument
1191 * Small typo fixed in SetYDataLabelPos
1193 * Update SetDataLabelPos: For past compatibility we accept plotleft,
1194 ...but pass it to SetTickLabelPos
1197 * Change to line 3802: data lables now work with multiple bars with *$idx
1200 * Added Function DrawDataLabels to put data labels in world coords,
1201 added call from DrawBars and modified SetYDataLabelPos to flag
1202 whether or not to call DrawDataLabels.
1204 2005-01-20 (migueldb)
1205 * Many bugfixes reported and solved by L. J. Bayuk. Thanks!
1206 + fixed bug #1096190
1207 + FindDataLimits(): fixed bug #1096192
1208 + CalcTranslation(): fixed bug #1101317
1209 + DrawImageBorder(): fixed bug 1096200
1210 + DrawXDataLabel(): fixed bug 1099879
1211 + DrawDots(): fixed bug #1096194
1213 ===== Released as 5.0rc2 =====
1215 2004-10-24 (migueldb)
1216 * array_merge_php4(): added to cope with the bug introduced by
1217 the change in array_merge() from PHP4 to PHP5 (I haven't verified this)
1218 * Fixed some divisions by zero, thanks to an old bug report.
1220 2004-09-09 (migueldb)
1221 * SetPointSize(): deprecated
1222 * SetPointSizes(): added as replacement for SetPointSize().
1223 Now able to set point sizes on a per line basis.
1224 * SetPointShape(): deprecated.
1225 * SetPointShapes(): added as replacement for SetPointShape().
1226 Now able to set point shape on a per line basis.
1227 * DrawDot(): now needs record number to decide which dot shape and
1229 * CalcMargins(): dirty fix for x data label placing.
1230 * tile_img(): fixed tile placement.
1232 2004-06-14 (migueldb)
1233 * SetXTickLabelPos() and others: more on the bug reported by Jo Demol.
1234 * Fixed bug reported by Jo Demol.
1236 2004-05-11 (migueldb)
1237 * SetBgImage(): added.
1238 * SetPlotAreaBgImage(): added.
1239 * SetInputFile(): deprecated.
1240 * DrawBackground(): now accepts images as backgrounds.
1241 * DrawPlotAreaBackground(): now accepts images as backgrounds.
1242 * tile_img(): internal method added.
1245 Editor's Note: For older changes to PHPlot, please see the CVS logs.
projects / bacula / bacula / blob