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Partial fix of v2.2.0 alpha2 Unhandled exception - extrusion width #3482

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Exceptions thrown by Flow calculation were made explicit classes derived
from std::invalid_argument.

The PresetHints::recommended_thin_wall_thickness() newly catches these
exceptions and it shows the reason of why the hint is invalid.
This commit is contained in:
bubnikv
2020-02-18 12:26:48 +01:00
parent d1e3435956
commit 43f2171446
3 changed files with 45 additions and 10 deletions
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16
src/slic3r/GUI/PresetHints.cpp
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@@ -262,12 +262,16 @@ std::string PresetHints::recommended_thin_wall_thickness(const PresetBundle &pre
int num_lines = std::min(num_perimeters * 2, 10);
out += (boost::format(_utf8(L("Recommended object thin wall thickness for layer height %.2f and"))) % layer_height).str() + " ";
// Start with the width of two closely spaced
double width = external_perimeter_flow.width + external_perimeter_flow.spacing();
for (int i = 2; i <= num_lines; thin_walls ? ++ i : i += 2) {
if (i > 2)
out += ", ";
out += (boost::format(_utf8(L("%d lines: %.2f mm"))) % i % width).str() + " ";
width += perimeter_flow.spacing() * (thin_walls ? 1.f : 2.f);
try {
double width = external_perimeter_flow.width + external_perimeter_flow.spacing();
for (int i = 2; i <= num_lines; thin_walls ? ++ i : i += 2) {
if (i > 2)
out += ", ";
out += (boost::format(_utf8(L("%d lines: %.2f mm"))) % i % width).str() + " ";
width += perimeter_flow.spacing() * (thin_walls ? 1.f : 2.f);
}
} catch (const FlowErrorNegativeSpacing &) {
out = _utf8(L("Recommended object thin wall thickness: Not available due to excessively small extrusion width."));
}
}
return out;