thliebig / appcsxcad Goto Github PK

Hi,

for certain polygons the AppCSXCAD is showing a weird artifact - it looks like some vertices are missing.
From the openEMS --debug-PEC dump it seems like openEMS is seeing the correct polygon - just the AppCSXCAD is visualizing it incorrectly.
Maybe related to this http://openems.de/forum/viewtopic.php?f=3&t=444 ?

Should look like this:

AppCSXCAD shows this:

openEMS PEC dump (white) with AppCSXCAD .stl export (blue) for comparison:

I have minimized the test-case into this script:

close all
clear
clc

FDTD = InitFDTD();

CSX = InitCSX();
CSX = AddMetal(CSX, 'metal');
p(1,1) = 0.00457; p(2,1) = 0.00718;
p(1,2) = 0.00457; p(2,2) = 0.00782;
p(1,3) = 0.00492; p(2,3) = 0.00782;
p(1,4) = 0.00492; p(2,4) = 0.00768;
p(1,5) = 0.00551; p(2,5) = 0.00768;
p(1,6) = 0.00551; p(2,6) = 0.00832;
p(1,7) = 0.00492; p(2,7) = 0.00832;
p(1,8) = 0.00492; p(2,8) = 0.00818;
p(1,9) = 0.00457; p(2,9) = 0.00818;
p(1,10) = 0.00457; p(2,10) = 0.00882;
p(1,11) = 0.00398; p(2,11) = 0.00882;
p(1,12) = 0.00398; p(2,12) = 0.00718;
CSX = AddPolygon( CSX, 'metal', 200, 2, 0.00018001, p);

mesh.x = 0:10e-3;
mesh.y = 0:10e-3;
mesh.z = 0:30e-3;
CSX = DefineRectGrid(CSX, 1, mesh);

WriteOpenEMS('model.xml', FDTD, CSX);
CSXGeomPlot('model.xml');

Generated .xml and the script:
appcsxcad_testcase.zip

openEMS version:

---------------------------------------------------------------------- 
 | openEMS 64bit -- version v0.0.35-63-gba793ac
 | (C) 2010-2018 Thorsten Liebig <[email protected]>  GPL license
 ---------------------------------------------------------------------- 
        Used external libraries:
                CSXCAD -- Version: v0.6.2-93-gef6e409
                hdf5   -- Version: 1.10.5
                          compiled against: HDF5 library version: 1.10.5
                tinyxml -- compiled against: 2.6.2
                fparser
                boost  -- compiled against: 1_72
                vtk -- Version: 8.2.0
                       compiled against: 8.2.0

I am trying to build this repo, since the APP is not working for me on Ubuntu 20.04

The INSTALL file, line 9, has this info

  - change directory to QCSXCAD

Is it right, o it should say AppCSXCAD?

Is it possible to view the structure in 2D view from the negative of the axis chosen? For instance, if I select 2D and yz, I view the structure from the positive x-axis. Is there a way to flip the structure by 180deg such that I can also view the structure from the negative x-axis? I didn't see anything like this in the GUI. The current best way to achieve this (assuming the feature is indeed not available) is to use parallel projection mode with 3D view and then attempt to line everything up manually. However, this is tricky to do well.

Create new metal object, name it using Unicode (for example, "Стол 1").

AppCSXCAD will show it as "???? 1" in a property tree and will save it with ISO-8859-1 encoding into XML file (so, there will be something like <Metal ID="2" Name="???? 1">).

It also won't read properly formed UTF-8 XML file and display gibberish characters instead.

I think that AppCSXCAD should use Unicode for storing the object names and for saving the data.

(I am using Windows.)