by Ben-chin K Cha
It provides various type of multiple line spectums, colored spectrum, surface or mesh plots in a 3D coordinates.
The Python Pmw color spectum is used to display the row / step wize spectrum data. A user can transpose row / step wize data freely by a simple mouse press.
Please refer 3dgraph reference file for the list of all methods defined in the Graph3D class.
| pviewer.zip | (0.126MB) | A collection of 1D/2D/3D graphic programs for python package |
Tkinter - python Tkinter with tk/tcl library Pmw - python mega widget class library Numeric - python numeric library PIL - python image library
source /APSshare/setup_apsshare 3dgraph.pyFor Linux users, a user only need to to do the following to properly setup the environment and run 3dgraph.py:
source /APSshare/setup_linux 3dgraph.py
3dgraph.config - The configration file is used for easy startup of this program. This configuration file is also shared by plot2d.py and tv.py for directly passing iamge data to 3dgraph.py graphics program.
CT.dat - This file contains the 41 set of scientific color tables available for use.
SH - This file records the default font and printer used.
Ascii *.txt - The Ascii data file must be column or row oriented data set, each line should contain same number of data points, the lines start with "#" or ";" will be treated as comment. By default the column oriented data set is assumed, a user can easily convert column or row oriented data by transpose the data array.
Main window consists of a menu bar, spectrum and surface canvas plot area, a panel of image information, command buttons area, and message status area.
File Menu
Open Ascii File... - dialog to load column oriented ascii input file and display color spectrum multi-row plot Printer... - dialog to override default printer
Setup Menu
Display Ascii File... - display the contents of ascii file loaded in
Transpose X,Y - transpose X,Y axis and replot the multi-row plot
Clear Canvas Plot - clear the plot in drawing area
Show Edge Line - checkbutton for displaying edge line on step
multi-line plot
Display Rebin Array - checkbutton affects large ascii data array,
whether use 200x200 bins or not
SpectrumColor Menu
Surface Shading - row spectrum color shaded surface plot Surface Shading (stepwise) - step spectrum color shaded surface plot Surface Plot - colored spectrum polygons surface plot Surface with Vertical Bar - colored spectrum with vertical bar skirt
ColorTable Menu
Change Color Table... - dialog to show surface in picked color table Use Rainbow+White Color Table - show surface in rainbow + white color table Average Cell Color On - check button to use average cell color value
MeshLine Menu
Surface Mesh Plot - plot as meshed grid lines All Row Lines - plot as multiple horizontal rows All Step Lines - plot as multiple vertical step rows Pick Row Lines... - dialog to plot desired Y step indecies Pick Step Lines... - dialog to plot desired X step indecies
Help Menu
About... - show program info Balloon Help - checkbutton to show balloon info 3dgraph_help.txt... - display this help info
3D Spectrum/Surface Plot Canvas
Main 3D graphic canvas area is used to display various kinds of colored spectrum, mesh lined and surface plot.
Image Info Panel
The maximum and minimum value is dranwn in this area to reflect the image array range. An image display frame is designed to show the TV image of input data array. A mouse motion event is bind with the image plot to reflects the X,Y,Z value of the mouse cursor.
Commad Area
Print - send the main canvas plot to printer Close - exit this program ROI... - dailog to extract region of interest form image array
Message Info Area
Display the menu/button function information.
A typical Ascii text file of column oriented 2D image data generated by MDA report generation is used in this example.
Following figure shows the contents of loaded in Ascii file. Column 1 contains X values and column 2 contains step index, image data start from column 3.
Following figure shows the spectrum plot of the raw Ascii data. The image in right panel show the complete data columns read in including the first two columns contains the X values and index vectors. In this case the bottom two rows reflect the X values. By default the spectrum line edge is also plotted.
Note that the input data is converted internally into rows of step wise data. The independent spectrum data starts from 3rd row(column) from bottom in this image display.
Following figure show how to throw away X column values from the image area. The 'ROI...' dialog allows the user extract only region of interest from the right panel image area.
Following figure show the 3D mesh plot of image data.
Following figure show the dialog of pick pre-defined color table available for the program.
Following figure show the rainbow + white color table used in 3D surface plot.
Following figure show the color shading of 3D specturm plot by using the Pmw.Color.spectrum color scheme.
Following figure show the dialog of picking step number slices to be plotted in 3D coordinates.
Following figure show the line spectrum in 3D coordinates.
Following figure show the ROI... dialog for extract upper right quadrant from image area.
Following figure show the spectrum with edge plot of the upper right quadrant of the data array.
Following figure show the mesh plot of the upper right quadrant of the data array.
