Difference between revisions of "Automatically Creating a Graph"

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With the collective ability to automatically draw lines and text boxes, Scribus can, without a great deal of work, be used to automatically generate a graph structure. Here I will show some basic Python commands to do that.
 
With the collective ability to automatically draw lines and text boxes, Scribus can, without a great deal of work, be used to automatically generate a graph structure. Here I will show some basic Python commands to do that.
  
''This currently works on version 1.3.4cvs. There is a problem with drawing vertical lines from Scripter, which was worked out for 1.3.4, but probably not in earlier 1.3.x versions.''
+
''As written, this works on version 1.3.4cvs. There is a problem with drawing vertical lines from Scripter, which was worked out for 1.3.4, but not (so far) in earlier 1.3.x versions.'' I've figured out a kludge that I know works for Windows 1.3.3.1:
 +
 
 +
For the line
 +
<pre>
 +
    e = scribus.createLine(xorigin,yorigin,xorigin,yorigin-yaxis)
 +
</pre>
 +
substitute
 +
<pre>
 +
    e = scribus.createLine(xorigin,yorigin,xorigin+yaxis,yorigin)
 +
</pre>
 +
I've put it in there but commented it out (started line with #). This makes the line horizontally, then we rotate it with:
 +
<pre>
 +
    scribus.rotateObject(90,e)
 +
</pre>
 +
that you can uncomment down below as well.
  
 
This early version will give three requestors, the first for a title of the graph, the second and third for the labels of the X-axis and Y-axis respectively. The dimensions and coordinates used are presuming points as page units.
 
This early version will give three requestors, the first for a title of the graph, the second and third for the labels of the X-axis and Y-axis respectively. The dimensions and coordinates used are presuming points as page units.
 +
 +
''For Windows, you need fonts you have available in your installation. Finding the '''real''' names of the fonts can be challenging. I would suggest checking the names in '''Script > Scribus Scripts > FontSample''', which will give you the precise names to switch to in graph.py.
  
 
Here is an example of the output:
 
Here is an example of the output:
Line 39: Line 55:
 
     scribus.setFillColor(color, d)
 
     scribus.setFillColor(color, d)
 
# Now the Y-axis
 
# Now the Y-axis
     d = scribus.createLine(xorigin,yorigin,xorigin,yorigin-yaxis)
+
     e = scribus.createLine(xorigin,yorigin,xorigin,yorigin-yaxis)
     scribus.setLineWidth(a, d)
+
# Comment out the above line, uncomment the next line for v1.3.3.x
     scribus.setLineColor(color, d)
+
#    e = scribus.createLine(xorigin,yorigin,xorigin+yaxis,yorigin)
     scribus.setFillColor(color, d)
+
     scribus.setLineWidth(a, e)
 +
     scribus.setLineColor(color, e)
 +
     scribus.setFillColor(color, e)
 +
# Uncomment the next line for v1.3.3.x
 +
#    scribus.rotateObject(90,e)
 
# The Title text frame
 
# The Title text frame
 
     T = scribus.createText(60, 45, 500, 60)
 
     T = scribus.createText(60, 45, 500, 60)
Line 49: Line 69:
 
     scribus.setTextAlignment(1, T)
 
     scribus.setTextAlignment(1, T)
 
     scribus.setFont("Nimbus Roman No9 L Bold", T)
 
     scribus.setFont("Nimbus Roman No9 L Bold", T)
 +
# in Windows, substitute the font: "Times New Roman Bold" will work
 
     scribus.setFontSize(28, T)
 
     scribus.setFontSize(28, T)
 
# Label for X-axis
 
# Label for X-axis
Line 55: Line 76:
 
     scribus.setTextAlignment(1, XL)
 
     scribus.setTextAlignment(1, XL)
 
     scribus.setFont("Luxi Sans Regular", XL)
 
     scribus.setFont("Luxi Sans Regular", XL)
 +
# For Windows, need a suitable font.
 
     scribus.setFontSize(20, XL)
 
     scribus.setFontSize(20, XL)
 
# Label for Y-axis, rotated
 
# Label for Y-axis, rotated
Line 61: Line 83:
 
     scribus.setTextAlignment(1, YL)
 
     scribus.setTextAlignment(1, YL)
 
     scribus.setFont("Luxi Sans Regular", YL)
 
     scribus.setFont("Luxi Sans Regular", YL)
 +
# For Windows, need a suitable font.
 
     scribus.setFontSize(20, YL)
 
     scribus.setFontSize(20, YL)
 
     scribus.rotateObject(90,YL)
 
     scribus.rotateObject(90,YL)

Revision as of 20:56, 17 May 2006

With the collective ability to automatically draw lines and text boxes, Scribus can, without a great deal of work, be used to automatically generate a graph structure. Here I will show some basic Python commands to do that.

As written, this works on version 1.3.4cvs. There is a problem with drawing vertical lines from Scripter, which was worked out for 1.3.4, but not (so far) in earlier 1.3.x versions. I've figured out a kludge that I know works for Windows 1.3.3.1:

For the line

    e = scribus.createLine(xorigin,yorigin,xorigin,yorigin-yaxis)

substitute

    e = scribus.createLine(xorigin,yorigin,xorigin+yaxis,yorigin)

I've put it in there but commented it out (started line with #). This makes the line horizontally, then we rotate it with:

    scribus.rotateObject(90,e)

that you can uncomment down below as well.

This early version will give three requestors, the first for a title of the graph, the second and third for the labels of the X-axis and Y-axis respectively. The dimensions and coordinates used are presuming points as page units.

For Windows, you need fonts you have available in your installation. Finding the real names of the fonts can be challenging. I would suggest checking the names in Script > Scribus Scripts > FontSample, which will give you the precise names to switch to in graph.py.

Here is an example of the output:

Timevsmoneygraph.png
Here is the script:
#!/usr/bin/env python

# File: graph.py
# originally 2006.05.17
# creates basic graph with axis labels

import scribus

xorigin = 150      # x-origin of graph
yorigin = 450     # y-origin of graph
xaxis=400      #x axis length
yaxis=350      #y axis length
color="Black"
a = 1.5 # width of lines
if scribus.haveDoc():
# Three requestors to get label names
    title = scribus.valueDialog('Title','Enter Title')
    xlabel = scribus.valueDialog('X-axis Label','Enter X-Label')
    ylabel = scribus.valueDialog('Y-axis Label','Enter Y-Label')
    scribus.setRedraw(1)
    scribus.setUnit(0)
# First draw the X-axis
    d = scribus.createLine(xorigin,yorigin,xorigin+xaxis,yorigin)
    scribus.setLineWidth(a, d)
    scribus.setLineColor(color, d)
    scribus.setFillColor(color, d)
# Now the Y-axis
    e = scribus.createLine(xorigin,yorigin,xorigin,yorigin-yaxis)
# Comment out the above line, uncomment the next line for v1.3.3.x
#    e = scribus.createLine(xorigin,yorigin,xorigin+yaxis,yorigin)
    scribus.setLineWidth(a, e)
    scribus.setLineColor(color, e)
    scribus.setFillColor(color, e)
# Uncomment the next line for v1.3.3.x
#    scribus.rotateObject(90,e)
# The Title text frame
    T = scribus.createText(60, 45, 500, 60)
    scribus.setTextColor("Red", T)
    scribus.setText(title, T)
    scribus.setTextAlignment(1, T)
    scribus.setFont("Nimbus Roman No9 L Bold", T)
# in Windows, substitute the font: "Times New Roman Bold" will work
    scribus.setFontSize(28, T)
# Label for X-axis
    XL = scribus.createText(xorigin, yorigin + 20, 400, 40)
    scribus.setText(xlabel, XL)
    scribus.setTextAlignment(1, XL)
    scribus.setFont("Luxi Sans Regular", XL)
# For Windows, need a suitable font.
    scribus.setFontSize(20, XL)
# Label for Y-axis, rotated
    YL = scribus.createText(90, 450, 350, 40)
    scribus.setText(ylabel, YL)
    scribus.setTextAlignment(1, YL)
    scribus.setFont("Luxi Sans Regular", YL)
# For Windows, need a suitable font.
    scribus.setFontSize(20, YL)
    scribus.rotateObject(90,YL)


    scribus.redrawAll()