chore: generate gridded NH legends at 2000x2000 with 0.5-degree grid

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: imikejackson

Source/Apps/generate_ipf_legends.cpp

@@ -375,21 +375,22 @@ void GenerateNolzeHielscherLegends(int imageDim)
     result = TiffWriter::WriteColorImage(ss.str(), imageDim, imageDim, 3, legend->getPointer(0));
     std::cout << ops.getSymmetryName() << " NH Triangle Result: " << result.first << ": " << result.second << std::endl;
 
-    // Set to grid-interpolated mode (MTEX-style rendering)
-    ops.setLegendRenderMode(ebsdlib::LegendRenderMode::GridInterpolated, 1.0);
+    // Set to grid-interpolated mode (MTEX-style rendering, 0.5 degree grid)
+    ops.setLegendRenderMode(ebsdlib::LegendRenderMode::GridInterpolated, 0.5);
 
-    // Generate gridded full-circle legend
-    legend = ops.generateIPFTriangleLegend(imageDim, true);
+    // Generate gridded legends at higher resolution (2000x2000)
+    constexpr int k_GriddedImageDim = 2000;
+    legend = ops.generateIPFTriangleLegend(k_GriddedImageDim, true);
     ss.str("");
     ss << k_Output_Dir << "/" << symName << "/" << symName << "_NH_GRIDDED_FULL.tiff";
-    result = TiffWriter::WriteColorImage(ss.str(), imageDim, imageDim, 3, legend->getPointer(0));
+    result = TiffWriter::WriteColorImage(ss.str(), k_GriddedImageDim, k_GriddedImageDim, 3, legend->getPointer(0));
     std::cout << ops.getSymmetryName() << " NH Gridded Full Result: " << result.first << ": " << result.second << std::endl;
 
     // Generate gridded triangle-only legend
-    legend = ops.generateIPFTriangleLegend(imageDim, false);
+    legend = ops.generateIPFTriangleLegend(k_GriddedImageDim, false);
     ss.str("");
     ss << k_Output_Dir << "/" << symName << "/" << symName << "_NH_GRIDDED.tiff";
-    result = TiffWriter::WriteColorImage(ss.str(), imageDim, imageDim, 3, legend->getPointer(0));
+    result = TiffWriter::WriteColorImage(ss.str(), k_GriddedImageDim, k_GriddedImageDim, 3, legend->getPointer(0));
     std::cout << ops.getSymmetryName() << " NH Gridded Triangle Result: " << result.first << ": " << result.second << std::endl;
 
     // Reset to TSL for subsequent operations