Description
This file contains classes for PlotFrame (1d plot), Plot2Frame (2d plot), and ImageFrame (2d array/image), all of which are written using WxPython graphics. 1d and 2d plots can contain one or more curves. A single curve can have selected points highlighted. The image window constructs a fixed pixmap, and can additionally draw a set of points, lines, circles, and rectangles over the image at the correct floating-point (nearest) pixel coordinates. A wx application must be created before creating any of these classes, and at least one window must be created. Each object is a derivative of wx.Frame, and responds to those commands as well.
Usage
PlotFrame(data, title='1d plot', min=0, max=0, pos=(-1, -1), size=(500, 422), selected=None, xoffset=0.0) Create a new 1d plot with floating-point data (a 1d or 2d numpy array). For multiple curves, each row of a 2d array is a separate curve. Set min = max = 0 for autoscaling. For a single curve, selected is a 1d array of booleans indicating which points to highlight. xoffset determines where the curves start along the x axis (0.0 to 1.0), with all points distributed in the remaining space. reload(data, title=None, min=0, max=0, selected=None, xoffset=0.0) Plot new data. ----------------------- Plot2Frame(data, title='2d plot', min=(0, 0), max=(0, 0), pos=(-1, -1), size=(500, 522), selected=None) Create a new 2d plot with floating-point data (a 2d or 3d numpy array). A curve is a 2 x N array of points. For multiple curves, each sheet (first index) of a 3d array is a separate curve. Set min = max = 0 for autoscaling. For a single curve, selected is a 1d array of booleans indicating which points to highlight. reload(data, title=None, min=(0, 0), max=(0, 0), selected=None) Plot new data. ----------------------- ImageFrame(data, title='Image plot', min=0, max=0, pos=(-1, -1), pts=None, circ=None, circ2=None) Create a new image plot with floating-point data (a 2d numpy array). Set min = max = 0 for autoscaling. pts is a 2 X N array. circ and circ2 are (cx, cy, rad) tuples. reload(data, title=None, min=0, max=0, pts=None, circ=None, circ2=None) Plot new data. addPoint(im, pt, val) Plot a point (set to val) in an image (2d array). pt is an (x, y) tuple. addLine(im, x1, y1, x2, y2, val) Plot a line (set to val) in an image (2d array). addCircle(im, circ, val) Plot a circle (set to val) in an image (2d array). circ is a (cx, cy, rad) tuple.
Examples
Calling the program from the command line creates examples of each window:
25: ~/Projects/Python/AstroPy > plots.py
See the __main__ section of the file for examples of creating the individual plots.
©Sky Coyote 2007