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Don't crash, if the number of lines to display is zero.

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bubnikv
2016-04-15 17:58:29 +02:00
parent 83166a7ff3
commit 42d9db04f2
1 changed files with 6 additions and 0 deletions
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6
xs/src/slic3r/GUI/3DScene.cpp
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@@ -1,5 +1,7 @@
#include "3DScene.hpp" #include "3DScene.hpp"
#include <assert.h>
namespace Slic3r { namespace Slic3r {
// caller is responsible for supplying NO lines with zero length // caller is responsible for supplying NO lines with zero length
@@ -15,6 +17,10 @@ _3DScene::_extrusionentity_to_verts_do(const Lines &lines, const std::vector<dou
// two triangles for each corner // two triangles for each corner
tverts->reserve_more(3 * 3 * 2 * (lines.size() + 1)); tverts->reserve_more(3 * 3 * 2 * (lines.size() + 1));
*/ */
assert(! lines.empty());
if (lines.empty())
return;
Line prev_line; Line prev_line;
Pointf prev_b1, prev_b2; Pointf prev_b1, prev_b2;