Latest releases

Image_Graph 0.7.2

2006-03-02T07:42:17-05:00

* Added Pie chart support for grouping items with values below a specified threshold in a "the rest" group
* Added possibility to set color of axis ticks (thanks to bdondo from forum)
* Added clipping support, causing forceMinimum() and forceMaximum() to show expected results
* Modified axis arrows, so that an axis with all negative values, the arrow will be shown at the minimum value instead of maximum
* Fixed a bug with Image_Graph_DataPreprocessor_Function not working, when callback function is an object method
* Fixed a bug with Candlestick, Band and Box & Whisker plots not working when using markers
* Fixed Bug #6024 "Undefined variable: parameters"
* Fixed Bug #6085 "Graph doesn't understand a numeric variable extracted from the GET method."
* Fixed Bug #6919 "Isolated points in linegraphs with breaks drawn incorrectly"
* Fixed Bug #6921 "Marker not drawn for points with Y value == 0"
* Fixed Bug #6941 "Logarithmic axis values between 0 and 1"
* Fixed Request #5985 "Logarithmic Axis Minimum Value"
* Fixed a problem with labels not appearing on the same baseline
* Added possibility to specify padding on all edges of an element separately
* Updated some API documentation entries

Image_Graph 0.7.1

2005-10-05T17:12:24-05:00

* Fixed Bug #5415 "Axis's wrong when plot is Dot/Scatter"
* Fixed Bug #5607 "X Axis Labels align to right"
* Fixed a problem with horizontal plots and axis labels and titles not showing/aligning properly
* Fixed a problem with horizontal Step plot

Image_Graph 0.7.0

2005-09-30T15:26:18-05:00

* Added Image_Graph_Plot_Odo (thanks Maxime Delorme)
* Added Image_Graph_DataSelector_Values (thanks Paolo)
* Added best-fit line plot (Image_Graph_Plot_Fit_Line)
* Added possibility to specify the pie plot diameter
* Modified Image_Graph_Plot_CandleStick, it is now only necessary to specify 'open' for first point (other 'open' = previous 'close')
* Changed Image_Graph_Plotarea::hideAxis() to actually hide the axis, not remove them
* Added Image_Graph_Plotarea::clearAxis() to remove the axis
* Fixed markers so that y values equal to null never shows markers
* Fixed problem in Image_Graph_Plot_BoxWhisker causing an undefined method
* Fixed problem with markers and horizontal plots
* Fixed problem with axis not showing arrow-ends even if enabled
* Fixed problem with an error "Call to a member function on a non-object..." in Common.php
* Fixed a problem with Image_Graph_Dataset_Trivial when supplying a datarray as constructor parameter and Image_Graph_Fill_Array
* Fixed Bug #5421 "Documentation for Image_Graph constructor wrong"
* Fixed Bug #5502 "Axis_Logarithmic::setAxisIntersection('max') is broken"
* Fixed Bug #5504 "PHP Notice: Undefined index: tohtml"
* Fixed PHP notice with Image_Graph::done() when using output to file
* Fixed so it is possible to use array(R, G, B, a?) as fill color
* Fixed issue with markers not rotating along with plot when using setStartingAngle()
* Fixed trivial dataset so that it is possible to use 'id' as key when populating dataset in constructor

Image_Graph 0.6.0

2005-08-27T13:46:46-05:00

* Added possibility to set starting angle of pie chart (at which angle does the first pieslice start) and the direction of the pies (clockwise or counter-clockwise)
* Added Request #5031 "Horizontal Bar graphs required" - all plot types (except radar and pie) support horizontal, it is the "Plotarea" that is horizontal
* Fixed Bug #5035 "Legend and graph color mismatch when using zeros in stacked bar"
* Fixed Bug #5066 "Reference Notices"

Image_Graph 0.5.0

2005-08-08T15:24:44-05:00

* Major change: removed Image_Graph_Driver and subclasses and uses Image_Canvas instead, which implies:
- Image_Graph_Color is obsolete, removing dependency on Image_Color (however Image_Canvas still depends on Image_Color)
- Fonts are simplified (all identified by name) and implemented using Image_Graph_Font class, removing Image_Graph_Font subclasses (only subclasses!), removing Fonts/ folder
- Added dependency on Image_Canvas
- Image/Graph/Config.php becoming obsolete since only IMAGE_GRAPH_SYSTEM_FONT_PATH was defined here. File kept for future purposes but not used.
- TTF Fonts (which were most often used) keep BC in 99% of the cases by replacing the 'ttf_font' factory alias mapping to 'Image_Graph_Font' and adding a mapping for 'Image_Graph_Font_TTF' to 'Image_Graph_Font'. Only case not working is when user manually includes Image/Graph/Font/TTF.php and creates and instance using 'new', which should only very, very rarely be the case
- BC break: If drivers were explicitly created before, they now have to be changed to Image_Canvas objects
* Added support for HTML image maps on line-, bar-, area-, smoothed line-, impulse-, band- and pie charts (more to come)
* Added 'tohtml' option for output directly in HTML using canvas and imagemap (if any)
* Added label option 'format' and 'dateformat' to Image_Graph_Axis to be able to format a label directly using sprintf() / date()
* Changed plus and cross markers to be outlined (by defalut) - visual improvement
* Added a star marker (Image_Graph_Marker_Star)
* Added legends to scatter/dot plots - the marker now shows in legends
* Performance optimization in Image_Graph_Axis_Category (with regards to heavy usage of array_search())
* Improved appearance of axis arrows
* Fixed Bug #4240 "Pie graph - color difference between graph and legend"
* Fixed Bug #4430 "Call-time pass-by-reference has been deprecated"
* Fixed Bug #4876 "mis-type in code -> undefined property"
* Bugs fixed/Features added in Image_Canvas
* Added Request #4451 "Unable to define IMAGE_GRAPH_SYSTEM_FONT_PATH outside of Config.php"
* Fixed Bug #4484 "SVG output problem with fill and alignment attributes of text"
* Fixed Bug #4586 "Content type image/jpg does not recognized by IE"

Image_Graph 0.4.0

2005-05-24T14:47:58-05:00

* Added support for antialiasing images when using GD (both using native GD method and Image_Graph own implementation)
* Added possibility to specify horizontal title alignment (left, right or center)
* Fixed an "off-by-one" problem with secondary axis
* Included all on-line examples in package
* Removed some memory leaks as described in bug #3958 "Memory leaks in Image_Graph 0.3.0-alpha"
* Fixed bug #4113 "Image_Graph_Driver_GD::pieSlice() warnings"
* Fixed bug #4333 "Legend division by zero error on PieChart"
* Fixed bug #4417 "Cannot use point ID as marker value"

Image_Graph 0.3.0

2005-02-25T03:37:23-05:00

Added possibility to use arrays of the type $data[$id] = array('x' => $x, 'y' => $y) for easy data addition to a dataset
* Added use of 'null' y-values in line plots (normal and smoothed) causing a break in the line (instead of dropping to zero)
* Added possibility to make one legend use multiple plotareas
* Added grouping to drivers (currently only fully supported by SVG driver)
* Added axis padding (padding inside the plotarea)
* Added Image_Graph_Axis::setFixedSize() to allow for alignment of axis on different plotareas when in a layout
* Added possibility to use padding with overlayed legends to make legend _not_ display fx. on-top of y-axis
* Added/improved support for multi line text using GD drivers
* Added support for antialiasing images when using GD (GD built in method)
* Implemented simple shadows (and removed shadow images from distribution)
* Fixed bug #3346 "double as data"
* Fixed a problem with normal multi-data bar charts not displaying expected bar width
* Fixed problem with legends when overlayed
* Fixed axis not displaying labels after resetting driver
* Fixed problem in SVG driver with vertical texts
* Fixed a problem with line axis marker on a secondary y-axis displaying vertically instead of horizontally
* Fixed problem with logarithmic axis not scaling properly
* Changed the way coordinates are calculated when adding titles to non-layout objects
* Changed which changes API causing minor BC breaks
- Renamed Image_Graph_Plot_Bar::barWidth() to Image_Graph_Plot_Bar::setBarWidth()
- Renamed Image_Graph_Plot_Bar::spacing() to Image_Graph_Plot_Bar::setSpacing()
- Removed Image_Graph_Layout_Plotarea, it being completely obsolete with introduction of Image_Graph_Axis::setTitle()
* Updated header comment blocks to conform to new standards as specified by RFC
* Performance optimizations

Image_Graph 0.3.0dev4

2005-01-28T03:22:32-05:00

Fixed problem with logarithmic axis causing an infinite loop

Image_Graph 0.3.0dev3

2005-01-27T16:36:55-05:00

* Added possibility to invert axis direction, fx. minimum at top or bottom
* Added methods to handle axis label customization (Image_Graph_Axis::setLabelOption() and Image_Graph_Axis::setLabelOptions())
* Minor change to the way GD driver(s) calculate height (so that fx. x-axis labels appear printed on the same baseline)
* Fixed axis so that forceMinimum() works with axis intersection
* Fixed PDF (PDFlib) driver to display images correctly
* Fixed factory method class name alias 'vector', tried to create Image_Graph_Dataset_Vector instead of Image_Graph_Dataset_VectorFunction
* Fixed a minor problem in category axis when adding more that one point with the same value, i.e. ('A', 10), ('A', 20)
* Fixed problem with grids on category axis
* Added possiblitity to add simple colors to Image_Graph_Line_Array
* Added id tags for line styles
* Performance optimization/tuning (axis, elements)
* Removed XML_SVG driver which was included by mistake (SWF driver remains, but has several unimplemented features)
* Added more tests

Image_Graph 0.3.0dev2

2005-01-13T08:31:30-05:00

* Added functionality for multi-level labels (ticks, text, etc.) to support for minor and major labels (and more if needed)
* Added fontmapping in GD drivers useful for mapping mnemonic fontnames, i.e. Times New Roman to font file names (either partial or full)
* Added configuration option in Config.php (IMAGE_GRAPH_SYSTEM_FONT_PATH) enabling to specify default search path for system fonts
- On Windows systems this defaults to %SYSTEMROOT%\Fonts\
* Added 'auto' split on layouts - calculated automatically based on actual sizes of the parts (supported only with titles)
* Added visual tests - not PHPUnit, test cases:
- Basic testing if requirements are met (GD + Freetype)
- Testcases for testing drivers
- Plot tests
- Axis tests
* Added support for setting width on the bars in a bar chart
* Added setFontColor(), setFontSize(), setFontAngle() to elements for easy change of properties of propagating fonts, without needing to create a new object
* Added new setTitle() method to axis to allow for easier displaying of axis titles
* Added Image_Graph_Plot_CandleStick to display financial charts for the stock market
* Added Image_Graph_Plot_Band
* Added major tick customizability to axis
* Added possibility to use user-defined values as axis-labels
* Added support for adding an array to Image_Graph_Dataset_Trivial for easy point addition
* Added some error/insanity checks
* Added Image_Graph_Tool class with static function for bezier curve-smoothing for drivers without native support (fx. GD)
* Added Image_Graph_Axis::setAxisIntersection() to specify a value for which the axis intersects another axis (i.e. Y-axis intersects X-axis in x=1 instead of x=0)
* Implemented drivers to support different output formats
- Currently full GD (JPEG/PNG/GIF/WBMP), SVG and PDF (PDFlib) support
- Semi-supported drivers SWF (Ming)
- Drivers planned SVG (XML_SVG), PDF (File_PDF) and SWF (libswf)
- No BC breaking API changes
- Currently no support for animations, i.e. SVG and SWF
* Re-implemented support for line styles
* Fonts now propagate through the structure, meaning if you set a font on the Graph all other elements inherit this font (but can be overridden)
- This does *not* break BC
* Modified Image_Graph_Axis_Radar to be a category axis
* Modified Image_Graph_Dataset to allow for y-value to be an array of values (to support candlestick diagrams)
* Changed pie chart legends, so they show all data values as legend except just one for complete chart
* Changed logging behaviour (added Image_Graph::setLog() method)
* Changed while-list-each to foreach for performance reasons (minor)
* Changed Image_Graph_Title constructor slightly (second parameter, see Docs. for details)
* Changed Image_Graph_Axis::setTitle() slightly to accomodate propagating fonts (no BC break)
* Included some more aliases for the Image_Graph::factory() method
* Updated how bar charts calculate width
* Legends now scale properly
* Legends now show differently depending on plot type
* API Changes with minor impact on BC
- Removed caching
- Removed Image_Graph::saveAs(), functionality moved to Image_Graph_Driver::done() method
- Removed Image_Graph::thumbnail()
- Removed Image_Graph_Axis_Multidimensional, mainly for perfomance reasons
- Image_Graph_Fill now inherits from Image_Graph_Common (instead of Image_Graph_Element)
- Removed GLOBAL font variables
* Fixed problems with Image_Graph_Axis_Radar showing values in wrong order
* Fixed bug causing negative bars to display incorrecly (why o' why is 0 == 'some string'?)
* Fixed bug causing setLineStyle() to fail
* Fixed Bug #2684 "Source typo breaking data selectors"
* Fixed Bug #2685 "Plots do not honor ID tags for fills"
* Fixed bug #2791 "wrong x-axis label position when using ttf font"
* Fixed bug causing displayErrors() to generate WARNING and FATAL ERROR
* Fixed problems with gradient fills (did not display propery using GD drivers)
* Fixed problem with bar-, area-, step- and impulse-charts when using forceMinimum(), causing bars to display 'below' x-axis
* Fixed Image_Graph_Axis::force(Minimum|Maximum)
* Removed default Image_Graph logo
* Removed _graphWidth() and _graphHeight(), they are now handled by the driver