I have some code that does this for a triangular mesh, using Cairo.jl directly probably not too hard to adapt that to arbitrary shapes. I don't think it is quite correct though as I'm getting artifacts on element boundaries that I haven't been able to figure out.
On Wed, Aug 6, 2014 at 4:23 PM, Andrea Vigliotti <[email protected] > wrote: > Hi Simon, > > > thanks for the interest! > > I'm attaching a picture of what I would like to obtain, > > > <https://lh5.googleusercontent.com/-WNX2ICZAEdw/U-KN7I_KAMI/AAAAAAAACxI/nmEUPlO3pwI/s1600/sample.png> > > This was done with the Matlab "patch", here the colours map the nodal > displacement > > below there is a picture obtained within Julia's PyPlot using the command > "fill" > > > <https://lh6.googleusercontent.com/-gVsqkJhMttg/U-KOVToqhxI/AAAAAAAACxQ/UUY74OaOr2o/s1600/sample_julia.png> > > as you can see I in this image there is no mapping > > > thanks again! > > > andrea > > > > > On Wednesday, 6 August 2014 20:38:24 UTC+1, Simon Danisch wrote: >> >> Can you explain your data from a pure visual stand point? >> I don't completely get, what should be part of the visualization, and >> what part belongs to your problem... >> This sounds like it could be easily doable with GLPlot, depending on your >> concrete needs. >> If its not possible, I might want to implement it;) >> Defining 3D/2D edges with color values, adding faces that connect the >> edges and then interpolating the color values per pixel, is one of the most >> basic tasks in OpenGL. >> >> Am Mittwoch, 6. August 2014 15:22:57 UTC+2 schrieb Andrea Vigliotti: >>> >>> Hi All, >>> >>> >>> does anyboby know how to plot a 2D polygonal patch with interpolated >>> colouring, based on the nodal values? >>> >>> I would basically like to reproduce the matlab "patch" command, and I >>> need it to post-process some simulation results from on a finite element >>> model, what I would like to obtain is some contour filled plot on the >>> deformed model, which has an arbitrary shape >>> >>> PyPlot includes the fill() command that draws filled polygonal with flat >>> colour, but I couldn't find a version that plots polygons with interpolated >>> colours, >>> >>> do you guys have any suggestion about this? >>> >>> thanks, >>> >>> andrea >>> >>
