Like you, we are big fan of open source tools for basis spatial functions in visualization, statistic, analysis and simulation. We develop open source programs or wrapper other open source GIS
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software for special use purpose.
Recent Tools in YardSpace Time Path ToolThis is a python program, working with pyshapelib together, to generate (x,y,time) shape file from ASCII raw data.
Download: http://code.google.com/p/geoyard/downloads/list
from SpaceTimePath import *
stp = SpaceTimePath()
stp.ReadShapeObjects("collision.trajectory.txt",True)
stp.MakeShapeFile("collision",shapelib.SHPT_ARCZ)
#stp.SetupCoordinateSyste("bike.shp")
#stp.ReadShapeObjects("bike.trajectory.txt",True,-1,0,1,2)
#stp.MakeShapeFile("bike",shapelib.SHPT_ARCZ)
print "Finished!"
"""
The source data format should be:
(id),x,y,time,[other],[other1],...
see the function declaration below:
"""
def ReadShapeObjects(self, dataFileName, skipHeader, idCol=0,xCol=1,yCol=2,tCol=3,spliter=','):Density Map ToolThis DensityMap class is used to generate ictural based density map from points shape file. [Less]