JpGraph Manual

List of Figures

1. Link to highlighted graph source

1.1. JpGraph and PHP

1.2. This is the very first example (example0.php)

2.1. phpinfo() GD sections

3.1. Pro-login dialogue on JpGraph Website

3.2. phphinfo() GD-Information

3.3. Verifying the GD installations (checkgd.php)

3.4. Verifying GD2 (checkgd2.php)

3.5. Verifying TTF with a known font (checkttf.php)

4.1. The first ten rows of data of sunspot activities from year 1700

4.2. Reading numeric tabulated sunspot data from a file

4.3. Line plot showing the number of sun spots since 1700 (sunspotsex1.php)

4.4. Displaying sun spots with a semi filled line graph (sunspotsex2.php)

4.5. Adding tick labels to the graph (sunspotsex3.php)

4.6. Manually specifying the X scale to use just the supplied X values (sunspotsex4.php)

4.7. Using a callback to get correct values on the x axis (sunspotsex5.php)

4.8. Changing the plot type to a bar plot instead (sunspotsex6.php)

4.9. Sunspots zoomed to only show the last 20 years (sunspotsex7.php)

6.1. Typical image error message

6.2. The "Header already sent error message"

6.3. The "Header already sent" error message using German locale

6.4. Using the production "pseudo" locale

7.1. Using alpha channel modifiers

7.2. Making use of transparency to combine two plots (barlinealphaex1.php)

7.3. Adjusting brightness of named color specifier

7.4. Adjusting brightness of a HTML color specifier

8.1. List of all latin TTF fonts. (listfontsex1.php)

8.2. Illustration of anchor point alignment (textalignex1.php)

8.3. Example of how to use rotated labels (bargradex1.php)

8.4. Example of using rotated data point values (example20.3.php)

8.5. The different types of paragraph alignments (textpalignex1.php)

8.6. Rendered symbol characters corresponding to

8.7. Rendered capital symbol characters corresponding to ???.

8.8. Specifying manual ticks as fraction of Pi. (manualtickex2.php)

9.1. Library cache principle

10.1. Example of generated HTML code for StrokeCSIM()

10.2. Browser window after calling HTML page in ??? (Note: The image has been scaled down to better fit this manual.)

12.1. Commonly used objects in a graph (common-obj-graph.php)

12.2. Commonly used objects in Piegraphs ( common-obj-piegraph.php)

13.1. Post vs. header() data direction

13.2. The request phase of a POST header

13.3. The reply phase of a POST request

13.4. Original graph with all values

13.5. Value at x=2 as ''

13.6. Value at x=2 as '-'

13.7. Error when only null values are specified

13.8. PHP (HTML) error when missing data keys

14.1. Supported principle linear graph types in the library

14.2. Using alternating fill colors in the grid (filledgridex1.php)

14.3. Using different grid styles for major and minor grids (gridstylesex1.php)

14.4. Predefined scientific axis positions

14.5. Example of AXSTYLE_BOXIN axis style (funcex2.php)

14.6. The various titles in a graph (titleex1.php)

14.7. Tabtitle and gradient background (gradbkgex1.php)

14.8. Tabtitle and image marker in a line plot (imgmarkerex1.php)

14.9. Different line formatting

14.10. Using a footer in a graph

14.11. Adding a left,right and center footer (footerex1.php)

14.12. Adding a timer to the graph (in the footer) (example11.php)

14.13. Original plot without clipping (clipping_ex1.php)

14.14. Plot with clipping enabled (clipping_ex2.php)

14.15. Some example of ways to position the legend box in the graph

14.16. Some example of different legend layouts

14.17. Basic example of multiple y-axis (mulyaxisex1.php)

14.18. Illustration of mulyaxiscsimex1.php

14.19. Inverted y-scale to show a dive profile (inyaxisex2.php)

14.20. Setting tick density to TICKD_DENSE (manscaleex3.php)

14.21. Fully automatic not so good scaling (manscaleex2.php)

14.22. Manually specified tick distance which gives a much better appearance (manscaleex1.php)

14.23. Manually specifying the tick position for each month (manualtickex1.php)

14.24. Adjusting the side which have the tick marks and position the x-axis at the top (topxaxisex1.php)

14.25. LABELBKG_NONE (axislabelbkgex01.php)

14.26. LABELBKG_XAXIS (axislabelbkgex02.php)

14.27. LABELBKG_YAXIS (axislabelbkgex03.php)

14.28. LABELBKG_YAXISFULL (axislabelbkgex04.php)

14.29. LABELBKG_XAXISFULL (axislabelbkgex05.php)

14.30. LABELBKG_XYFULL (axislabelbkgex06.php)

14.31. LABELBKG_XY (axislabelbkgex07.php)

14.32. The original graph (grace_ex0.php)

14.33. Using a 10% grace (grace_ex1.php)

14.34. Using a 50% grace (grace_ex2.php)

14.35. Using a 100% grace (grace_ex3.php)

14.36. The original line graph (example3.2.php)

14.37. Adding grace values. Note x-axis position at y=0 (example3.2.1.php)

14.38. Adjusting the position of the x-axis manually (example3.2.2.php)

14.39. Manual text scale example

14.40. Manual text scale with month labels (manual_textscale_ex1.php)

14.41. Setting text tick interval=2 (manual_textscale_ex2.php)

14.42. Labels at every 2:nd tick mark (manual_textscale_ex3.php)

14.43. Tick marks every 40 points and labels every 2:nd tick mark (manual_textscale_ex4.php)

14.44. BAND_RDIAG (smallstaticbandsex1.php)

14.45. BAND_LDIAG (smallstaticbandsex2.php)

14.46. BAND_DIAGCROSS (smallstaticbandsex10.php)

14.47. BAND_HLINE (smallstaticbandsex7.php)

14.48. BAND_VLINE (smallstaticbandsex6.php)

14.49. BAND_HVCROSS (smallstaticbandsex5.php)

14.50. BAND_3DPLANE (smallstaticbandsex4.php)

14.51. BAND_SOLID (smallstaticbandsex3.php)

14.52. SetDensity(10) (plotbanddensity_ex0.php)

14.53. SetDensity(40) (plotbanddensity_ex1.php)

14.54. SetDensity(80) (plotbanddensity_ex2.php)

14.55. Creative use of plot bands

14.56. Creative use of plot bands (staticbandbarex7.php)

14.57. Use of a static line to simulate an extra x-axis at y=0

14.58. Adding a static line at y=0 to simulate an extra 0-axis (impulsex4.php)

14.59. Changing the Y2 scale from linear to logarithmic (example7.php)

14.60. Enabling minor grid lines on the y-axis and also grid lines on the x-axis (example8.php)

14.61. An example of a log-log plot (where both the y- and x-axis use a logarithmic scale) (loglogex1.php)

14.62. Using a text-log scale (example9.php)

14.63. Adjusting the text scale so that only every second labels are displayed. (example9.1.php)

14.64. Rotating the x-axis labels 90 degree (example9.2.php)

14.65. A first date scale example (dateaxisex2.php)

14.66. Manually adjusting the tick labels for a date scale (datescaleticksex01.php)

14.67. Adjusting label formatting of a date scale (dateaxisex4.php)

14.68. Manually creating a date scale (dateaxisex1.php)

14.69. Adding a label at the start of every month (manualtickex1a.php)

14.70. Manually specified date scale (dateutilex01.php)

14.71. Using an automatic date scale (dateutilex02.php)

14.72. Different types of shearing transformation

14.73. Explaining the shearing parameters

14.74. Original unrotated graph (rotex0.php)

14.75. Rotating the plot area 45 degrees (rotex1.php)

14.76. Rotating the plot area 90 degrees (rotex2.php)

14.77. Rotating the plot area 45 degrees (rotex3.php)

14.78. Rotating the plot area 90 degrees (rotex4.php)

14.79. Rotating the plot area -30 degree around the bottom left corner (rotex5.php)

14.80. Plain radar plot (radarex8.php)

14.81. Anti-aliased radar plot (radarex8.1.php)

14.82. Anti-aliasing up-close. The figure shows the difference between a standard line (on-top) and the corresponding anti-aliased line (on-the bottom)

14.83. Affects of using anti-alias for Pie-graphs

14.84. Mixing an icon image into the background of the graph. The area plot in the graph uses alpha blending to achieve see-through affect (lineiconex1.php)

14.85. Adding a country flag icon in the background (lineiconex2.php)

14.86. The graph that will be used to add backgrounds to

14.87. Background image (a closeup of our burnt server)

14.88. BGIMG_COPY (background_type_ex0.php)

14.89. BGIMG_CENTER (background_type_ex1.php)

14.90. BGIMG_FREE (background_type_ex2.php)

14.91. BGIMG_FILLPLOT (background_type_ex3.php)

14.92. BGIMG_FILLFRAME (background_type_ex4.php)

14.93. What area of the graph the gradient should affect

14.94. Different types of gradient fills

14.95. The "mkgrad" utiliy to create gradient images

14.96. Adding a text object to a graph (example25.php)

14.97. Making the text stand out a bit more by adding a background color and frame (example25.1.php)

14.98. Adding a text object with multiple rows of text. Paragraph alignment is set to "center" (example25.2.php)

15.1. Supported linear graph types in the library

15.2. The most simple line graph (example0-0.php)

15.3. Adding some titles (example2.php)

15.4. Changing fonts of the axis titles and adjusting plot weight (example3.php)

15.5. Adding drop shadow and changing axis color (example3.0.1.php)

15.6. Original null values (example3.0.3.php)

15.7. Using '-' to get interpolated lines (example3.0.2.php)

15.8. Adding basic plot marks to the plot (example3.1.php)

15.9. Using one of the built-in images as plot mark, MARK_IMG_DIAMOND (example3.1.1.php)

15.10. Using country flags as plot marks (markflagex1.php)

15.11. (example3.3.php)

15.12. Changing the appearance of data labels (example3.4.php)

15.13. Formatting display values as roman numerals (example3.4.1.php)

15.14. Adding a second data series (example4.php)

15.15. Adding a second y-axis to the graph (example5.php)

15.16. Adding and adjusting the position of the legend box (example6.php)

15.17. Adjusting the layout of the texts in the legend box (example6.1.php)

15.18. Using plot marks with several data series and a legend (builtinplotmarksex1.php)

15.19. Using the "Step style" for line plots (example6.2.php)

15.20. A basic filled line graph (filledlineex01.php)

15.21. Having the grid line on top of a filled line plot (filledlineex01.1.php)

15.22. Creating the effect of an area fill with an image (lineimagefillex1.php)

15.23. Filling from the 0-line (The default) (manualtickex3.php)

15.24. Filling from the bottom (manualtickex4.php)

15.25. A basic gradient fill using default values (gradlinefillex1.php)

15.26. Using the default number of intermediate colors (gradlinefillex2.php)

15.27. Only using 4 colors in total between start and finish color (gradlinefillex3.php)

15.28. Adding two partially filled areas to a line plot (partiallyfilledlineex1.php)

15.29. Area plot with 'x' NULL values (filledlineex03.php)

15.30. A basic accumulated area plot (example17.php)

15.31. Area plot with specified x coordinates (prepaccdata_example.php)

15.32. Constructing a smooth spline curve from 8 control points (splineex1.php)

15.33. Different types of supported bar graphs

15.34. Using "int" scale for the x-axis (example19.1.php)

15.35. Using "text" scale for the x-axis (example19.php)

15.36. An accumulated bar plot (example23.php)

15.37. Accumulated bar with individual frame colors (accbarframeex01.php)

15.38. Accumulated bar with unit frame color (accbarframeex02.php)

15.39. Setting individual frames to weight=0 (accbarframeex03.php)

15.40. A grouped bar plot (example21.php)

15.41. Adjusting the width of a group bar plot (example22.php)

15.42. All data series in a grouped bar graph must have the same number of data points (groupbarex1.php)

15.43. A grouped accumulated bar graph (example24.php)

15.44. A basic horizontal bar graph (horizbarex1.php)

15.45. Using multiple line labels in a horizontal bar graph (horizbarex4.php)

15.46. Supported gradient fills for bar plots

15.47. GRAD_MIDVER (bargradsmallex1.php)

15.48. GRAD_MIDHOR (bargradsmallex2.php)

15.49. GRAD_HOR (bargradsmallex3.php)

15.50. GRAD_VER (bargradsmallex4.php)

15.51. GRAD_WIDE_MIDVER (bargradsmallex5.php)

15.52. GRAD_WIDE_MIDHOR (bargradsmallex6.php)

15.53. GRAD_CENTER (bargradsmallex7.php)

15.54. GRAD_RAISED_PANEL (bargradsmallex8.php)

15.55. Horizontal bar graph with gradient fill (horizbarex6.php)

15.56. Supported pattern fills for bar plots

15.57. Using a callback to format the labels on a bar (barscalecallbackex1.php)

15.58. A basic error plot (example13.php)

15.59. Making use of SetCenter() with error plots (example14.php)

15.60. A basic Line error plot (example15.php)

15.61. A line error plot with a legend (example16.php)

15.62. A stock graph (stockex1.php)

15.63. Explaining stock graphs

15.64. A typical boxplot (boxstockex1.php)

15.65. A basic scatter plot (scatterex1.php)

15.66. Adjusting the size and color of the marker (scatterex2.php)

15.67. Combining data points with a dotted line (scatterlinkex3.php)

15.68. Combining data points with a red line (scatterlinkex4.php)

15.69. Stem plot (impulsex1.php)

15.70. Adjusting the overall look and feel for the stem graph (impulsex3.php)

15.71. Possible sizes of arrow heads for field plots

15.72. A field plot (fieldscatterex1.php)

15.73. Using format callback to create a balloon plot (balloonex2.php)

15.74. An example with geo maps (pushpinex1.php)

15.75. A basic contour graph (basic_contourex01.php)

15.76. Adding axis on all sides (basic_contourex02.php)

15.77. Flipping the data around the center line (basic_contourex05.php)

15.78. Using only 5 isobar lines (basic_contourex04.php)

15.79. Interpolation factor=1 (basic_contourex03-1.php)

15.80. Interpolation factor=2 (basic_contourex03-2.php)

15.81. Interpolation factor=3 (basic_contourex03-3.php)

15.82. The exponential growth of the data size due to grid interpolation factor (interpolation-growth.php)

15.83. The exponential growth of the data size due to the grid interpolation factor (log scale) (interpolation-growth-log.php)

15.84. Mixing a line and area plot in the same graph (example16.1.php)

15.85. Mixing a line and bar plot in the same graph (example16.3.php)

15.86. Centering the line plot in the middle of the bar (linebarcentex1.php)

15.87. Mixing bar and line using an integer x-scale (example16.4.php)

15.88. A combination of a line graph at top and a bar graph in the bottom (combgraphex1.php)

15.89. Mixing a background image with two subgraphs. In this case the mixing factor was 85 for both subgraphs. (Note: To reduce load time the image is quite hard compressed in JPEG so there are some artifacts in high-frequency areas.) (combgraphex2.php)

15.90. Combining three graphs in one image (comb90dategraphex03.php)

16.1. Pie graphs

16.2. Pie3D graphs

16.3. Ring graphs

16.4. Radar graphs

16.5. Polar graphs

16.6. Gantt charts

16.7. Hare/Niemeyer pie plot integer compensation

16.8. A basic Pie graph (example26.php)

16.9. Adding a legend to a pie plot (example26.1.php)

16.10. Adding several pie plots to the same pie graph (pieex3.php)

16.11. Adding guide lines to a pie labels (pielabelsex1.php)

16.12. Lining up guide lines vertically (pielabelsex2.php)

16.13. Adjusting the distance between the labels for guide lines (pielabelsex4.php)

16.14. A basic 3D pie plot (example27.php)

16.15. Adjusting the perspective angle (example27.1.php)

16.16. Affect of adjusting the perspective angle for a 3D pie plot

16.17. A ring plot (piecex1.php)

16.18. A ring graph with several formatting options adjusted (piecex2.php)

16.19. Exploding the second slice (example27.2.php)

16.20. Exploding the second slice (example27.3.php)

16.21. Adjusting the position of the pie labels (pieex8.php)

16.22. Adding a drop shadow to exploded pie (pieex9.php)

16.23. Pie plots with a background image (piebkgex1.php)

16.24. (example28.1.php)

16.25. (example28.2.php)

16.26. (example28.php)

16.27. (example28.3.php)

16.28. Earth theme

16.29. Pastel theme

16.30. Sand theme

16.31. Water theme

16.32. A typical radar graph with two radar plots added (radarex7.php)

16.33. A basic radargraph with no formatting (radarex1.php)

16.34. A basic radargraph with minimal formatting (radarex2.php)

16.35. Adding plot marks to a radar graph (radarmarkex1.php)

16.36. Enabling a dashed grid line (radarex4.php)

16.37. Enabling a dashed grid line with red (radarex6.php)

16.38. Using a logarithmic scale (radarlogex1.php)

16.39. Enabling anti-alias for the logarithmic radar example (radarlogex1-aa.php)

16.40. A more complex example of a radar graph with a manual scale (fixscale_radarex1.php)

16.41. A full 360 degree polar graph (polarex0.php)

16.42. A 180 degree (half) polar graph (polarex0-180.php)

16.43. A 360 polar plot with background gradient and alpha blending (polarex7-2.php)

16.44. Clockwise polar graph (polarclockex1.php)

16.45. Rotated clockwise polar graph (polarclockex2.php)

16.46. Adding plot marks to a polar graph (polarex7-1.php)

16.47. Linear scale for radius (polarex3-lin.php)

16.48. Logarithmic scale for radius (polarex3.php)

16.49. Logarithmic scale with only major grid lines (polarex4.php)

16.50. Logarithmic scale with both major and minor grid lines (polarex5.php)

16.51. Different colors for labels, specifying both a tabbed title as well as a axis title (polarex9.php)

16.52. A typical small Gantt chart (ganttmonthyearex2.php)

16.53. Building block of a Gantt chart

16.54. The Gantt scale properties

16.55. Gantt chart with day and hour scale enabled (gantthourex1.php)

16.56. The simplest possible Gantt graph (ganttex00.php)

16.57. Making some minor alterations to the Gantt graph (ganttex01.php)

16.58. Specifying a large vertical position (ganttex03.php)

16.59. Adding a milestone marker to a gantt graph (ganttex04.php)

16.60. Adding a vertical line in the Gantt graph (ganttex06.php)

16.61. Adjusting the position of the vertical line within the day (ganttex07.php)

16.62. Adding several activity bars on the same row (gantt_samerowex1.php)

16.63. Adding a hollow "break" bar (gantt_samerowex2.php)

16.64. Example of adding a right marker to the activity bar

16.65. A large marker will force the row to become larger since it by default always fills 60% of the allocated height for each row (ganttex08.php)

16.66. Adding a caption to a Gantt bar

16.67. Adding progress bars ot the gantt chart (ganttex14.php)

16.68. Modifying the format for the progress pattern (ganttex15.php)

16.69. Start to end constraint

16.70. Start to start constraint

16.71. End to start constraint

16.72. End to end constraint

16.73. Group markers

16.74. Using the CreateSimple() wrapper method (ganttsimpleex1.php)

16.75. Using multiple columns as titles for activties (ganttmonthyearex3.php)

16.76. Using different fonts for individual columns (ganttcolumnfontsex01.php)

16.77. Adding a spanning title over all title columns (ganttmonthyearex4.php)

16.78. Built-in icons for Gantt charts

16.79. Adding built in icons in titles (gantticonex1.php)

16.80. A zoom factor of 0.7 (ganttex13-zoom1.php)

16.81. A zoom factor of 1.5 (ganttex13-zoom2.php)

16.82. Adding a table title in the top left corner (ganttex16.php)

16.83. Gantt divider lines

16.84. Adjusting the plot box around the gantt chart (ganttex18.php)

16.85. (gantthgridex1.php)

16.86. Adding a country flag to the top left corner of the gantt graph (ganttex17-flag.php)

16.87. Adding two text objects to a Gantt graph (gantt_textex1.php)

16.88. Error message when using an unsupported Locale in Gantt chart

16.89. Using Swedish locale. Notice the L for Lordag instead of S for Saturday (ganttex19.php)

16.90. Using multiple title columns with a scale of one day (gantthourminex1.php)

16.91. Using multiple markers and indenting titles in the Gantt chart (ganttex30.php)

16.92. Using a grouping bar together with constraints (ganttconstrainex2.php)

17.1. LEDC_GREEN (ledex1.php)

17.2. LEDC_RED (ledex2.php)

17.3. LEDC_YELLOW (ledex3.php)

17.4. LEDC_BLUE (ledex5.php)

17.5. LEDC_GRAY (ledex6.php)

17.6. LEDC_INVERTGRAY (ledex17.php)

17.7. LEDC_CHOCOLATE (ledex7.php)

17.8. LEDC_PERU (ledex8.php)

17.9. LEDC_GOLDENROD (ledex9.php)

17.10. LEDC_KHAKI (ledex10.php)

17.11. LEDC_OLIVE (ledex11.php)

17.12. LEDC_LIMEGREEN (ledex12.php)

17.13. LEDC_FORESTGREEN (ledex13.php)

17.14. LEDC_TEAL (ledex14.php)

17.15. LEDC_STEELBLUE (ledex15.php)

17.16. LEDC_NAVY (ledex16.php)

17.17. Supersampling=1 (ledex4.php)

17.18. Supersampling=2 (default) (ledex4.1.php)

17.19. Supersampling=4 (ledex4.2.php)

17.20. LED 4x7 Cyrillic alphabet support

17.21. Sample illustration of captcha challenge (antispamex01.php)

17.22. A simple canvas graph to draw a text box (canvasex01.php)

17.23. Drawing some basic geometric shapes on a canvas (canvasex02.php)

17.24. Creating a canvas graph with a scale and using the shape class (canvasex03.php)

17.25. Changing the image size to create a smaller version of the previous example (canvasex04.php)

17.26. Keeping the image size but changing the scale (canvasex05.php)

17.27. Example of using an indented rectangle (canvasex06.php)

18.1. Linear regression using utility class (example16.6.php)

19.1. Standalone table examples

19.2. Combining a graphic table and a bar graph

19.3. The most basic 2x4 table (table_howto1.php)

19.4. Merging the rightmost 4 cells in the table (table_howto2.php)

19.5. Merging the top row (table_howto3.php)

19.6. Adjusting the font in the top row (table_howto5.php)

19.7. Merging and setting the colors the top row (table_howto4.php)

19.8. Setting the minimum column width to 35 pixels. (table_howto6.php)

19.9. Double lines 1 (table_howto7.1.php)

19.10. Double lines 2 (table_howto7.2.php)

19.11. Removing some grid lines and border. In addition we have right aligned all the cells as is common practice for numeric data. (table_howto8.php)

19.12. Applying a number format to the data in the cells (table_howto9.php)

19.13. Using country flags in the table cells (table_flagex1.php)

19.14. xx (table_mex00.php)

19.15. xx (table_mex0.php)

19.16. xx (table_mex1.php)

19.17. xx (table_mex3.php)

19.18. Vertical text (table_vtext.php)

19.19. Adding an icon (image) in a table cell (table_iconex1.php)

19.20. Combining a bar graph and a table (tablebarex1.php)

20.1. Odometers

20.2. A basic odometer (odotutex00.php)

20.3. A full circle odometer (odotutex01.php)

20.4. Adding titles and captions (odotutex02.php)

20.5. Adding a multi line caption (odotutex03.php)

20.6. Changing colors (odotutex04.php)

20.7. Possible shapes of the odometer indicator (odotutex06.php)

20.8. Illustration of various sizes of arrow heads (odotutex07.php)

20.9. Adding drop shadows (odotutex08.php)

20.10. Increasing the individual margins around the plots (odotutex09.php)

20.11. Adding colored scale indicators (odotutex10.php)

20.12. Adjusting the non-colored center area (odotutex11.php)

20.13. Adding a second scale indicator (odotutex12.php)

20.14. Adding a scale legend by using the label property (odotutex13.php)

20.15. (odotutex14.php)

20.16. Adjusting the scale format (odotutex15.php)

20.17. Adjusting start and end angles of scale (odotutex16.php)

20.18. Adding gray areas below the min and max scale values (odotutex16.1.php)

20.19. Manually specifying the position of odometer plots (odotutex17.php)

20.20. Using layout classes for automatic positioning (odotutex18.php)

20.21. Adding an icon and text to a Odometer graph (odotutex19.php)

21.1. An basic Windrose plot

21.2. WINDROSE_TYPE4

21.3. WINDROSE_TYPE8

21.4. WINDROSE_TYPE16

21.5. WINDROSE_TYPEFREE

21.6. A basic 16 direction windrose graph (windrose_ex0.php)

21.7. Adding two windrose plots to the same graph (windrose_2plots_ex1.php)

21.8. Positioning with LBLPOSITION_CENTER

21.9. Positioning with LBLPOSITION_EDGE

21.10. Windrose legend methods

21.11. Using chinese fonts (windrose_ex6.1.php)

21.12. Japanese locale (windrose_ex7.1.php)

21.13. Adding label background (windrose_ex8.1.php)

21.14. Different legend label styles

21.15. Interpretation of ordinal keys (windrose_ex9.1.php)

21.16. Adding a "tornado" icon to the top left corner (windrose_icon_ex1.php)

21.17. Using layout classes to position 4 windrose plots (windrose_layout_ex0.php)

21.18. Using layout classes to position 5 windrose plots (windrose_layout_ex1.php)

21.19. (windrose_ex1.php)

21.20. (windrose_ex2.php)

21.21. (windrose_ex3.php)

21.22. (windrose_ex4.php)

21.23. (windrose_ex5.php)

21.24. (windrose_ex6.php)

21.25. (windrose_ex7.php)

21.26. Show how to set different styles for individual radial grid lines (windrose_ex8.php)

21.27. (windrose_ex9.php)

21.28. (windrose_bgimg_ex1.php)

22.1. A medium complex example to shows some capabilities of matrix plots (matrix_introex.php)

22.2. A basic matrix graph with all default values (matrix_ex0.php)

22.3. The effects of changing the value range for the colormap

22.4. Using a circular module type (matrix_ex05.php)

22.5. Matrix alpha blending=0.2 (matrix_ex04.1.php)

22.6. Matrix alpha blending=0.7 (matrix_ex04.2.php)

22.7. Matrix legend positions

22.8. Adding row and column legends to a matrix plot (matrix_edgeex01.php)

22.9. Adding an icon to the lower right corner (matrix_ex03.php)

22.10. Adding a background image to the matrix graph (matrix_ex04.php)

22.11. Adding plot lines to the matrix plot (matrix_ex06.php)

22.12. Using layout classes with Matrix plots (matrix_layout_ex1.php)

22.13. Standard color maps

22.14. Centered color map

22.15. Continues color map

23.1. Filled contour with labels (contour2_ex1.php)

23.2. Filled contour with no isobar lines (contour2_ex2.php)

23.3. Manual colors for contour (contour2_ex3.php)

23.4. Labels that follows the gradients (contour2_ex4.php)

23.5. Labels that are always horizontal. In this example we have also shown how to change the colors. (contour2_ex5.php)

23.6. Triangulation step 0

23.7. Triangulation step 1

23.8. Triangulation step 2

23.9. "Rectangularization" step 0

23.10. "Rectangularization" step 1

23.11. "Rectangularization" step 2

23.12. 7 Isobars, "rect" method (contour2_ex6.php)

23.13. 7 Isobars, "tri" method (contour2_ex7.php)

23.14. Rectangular sub-division

23.15. Triangular sub-division

24.1. Understanding linear barcodes. Example with Code 25 symbology

24.2. Linear Barcode Demo application (screen shot from running in WEB-browser)

24.3. Encoding "ABC123" with CODE 39.

24.4. Encoding "ABC123" with CODE 128.

24.5. Image error - Failed barcode data validation

24.6. Encoding "ABC123" with CODE 39 adding checksum (checksum=4).

24.7. Encoding "ABC123" with CODE 39, hiding the text.

24.8. UPC A Example

24.9. UPC E Encoding of "05510000120"

24.10. UPC A Encoding of "05510000120"

24.11. EAN 8 Example

24.12. EAN 13 Example

24.13. EAN 128 Example

24.14. Industrial 2 of 5, without check digit

24.15. Industrial 2 of 5, with check digit

24.16. Industrial 2 of 5, without check digit

24.17. Industrial 2 of 5, with check digit

24.18. Code 11, without check digit

24.19. Code 11, with check digit

24.20. Code 39, without check digit

24.21. Code 39, with check digit

24.22. Code 39 Extended, without check digit

24.23. Code 39 Extended, with check digit

24.24. Code 128

24.25. Codabar

24.26. Bookland (ISBN)

25.1. PDF417 Structure - Overview

25.2. PDF417 Structure - Details of a real barcode

25.3. PDF417 WEB-based demo application

25.4. Overview of the interaction between encoder and backends

25.5. The most basic PDF417 script (pdf417_ex0.php)

25.6. Adding error handling (pdf417_ex1.php)

25.7. Adjusting the number of columns and error correction level (pdf417_ex1b.php)

25.8. Adjusting the module width and showing human readable text (pdf417_ex2.php)

25.9. Structure for manually specified encodation schema

25.10. Normal PDF417

25.11. Truncated PDF417

25.12. Showing human readable text (pdf417_ex3.php)

25.13. Changing colors (pdf417_ex4.php)

25.14. (pdf417_ex6.php)

26.1. Datamatrix structure.

26.2. Datamatrix - Square symbol shape

26.3. Datamatrix - Rectangle symbol shape

26.4. Datamatrix encodation principle

26.5. The simplest possible datamatrix script (datamatrix_ex00.php)

26.6. Datamatrix error image

26.7. Datamatrix with basic error handling (datamatrix_ex0.php)

26.8. Datamatrix with modified module width (datamatrix_ex1.php)

26.9. Datamatrix WEB-based demo application

26.10. Datamatrix example, setting quiet zone and ASCII encoding (datamatrix_ex4.php)

26.11. Datamatrix postscript output

26.12. Datamatrix example, changing colors (datamatrix_ex5.php)

27.1. QR Code high level structure

27.2. Creative usage of QR Barcodes

27.3. A small sized QR Code (version=2)

27.4. A medium sized QR code (version=13)

27.5. QR Encodation Process

27.6. The first very basic QR code (qrexample00.php)

27.7. QR Error message

27.8. Adding basic exception handling (qrexample0.php)

27.9. Adjusting the module width for the QR code (qrexample01.php)

27.10. Structure for manually specify QR encodation schema

27.11. QR Code - Example Postscript Output

27.12. A QR code template (qr_template.php)

27.13. QR Code WEB-based demo application

27.14. Specified error correction level (qrexample04.php)

27.15. QR Barcode with manually specified encodation (qrexample05.php)

27.16. QR Barcode with image in JPG format (qrexample06.php)

27.17. multiple manually specified encodation schema. (qrexample07.php)

27.18. data read from file (qrexample08.php)

27.19. (qrexample09.php)

27.20. Specified error correction level (qrexample10.php)

27.21. QR With ASCII rendering

28.1. Synchronized y and y2 scales (y2synch.php)

28.2. Using a barplot with two different scales (y2synch2.php)

29.1. usps_exhibit44.png

29.2. USPS example 1

29.3. USPS example 2

30.1. Spam statistics

31.1. Critical chain buffer penetration. Each white scatter dot represents the state of one task.

31.2. Buffer penetration chart for example

31.3. Buffer penetration chart with "historic" tail

31.4. Complete buffer penetration example with history trace (ccbp_ex1.php)

31.5. Using the alternative color map (ccbp_ex2.php)

31.6. Steps to create the background

A.1. The documentation build process

E.1. Small size

E.2. Medium size

E.3. Large size

E.4. Standard size

E.5. Standard size

E.6. Standard size

E.7. Standard size

E.8. Standard size