mirror of https://github.com/JakubMelka/PDF4QT.git
76 lines
3.0 KiB
C++
76 lines
3.0 KiB
C++
// Copyright (C) 2019-2021 Jakub Melka
|
|
//
|
|
// This file is part of PDF4QT.
|
|
//
|
|
// PDF4QT is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// with the written consent of the copyright owner, any later version.
|
|
//
|
|
// PDF4QT is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
#ifndef PDFMESHQUALITYSETTINGS_H
|
|
#define PDFMESHQUALITYSETTINGS_H
|
|
|
|
#include "pdfglobal.h"
|
|
|
|
#include <QTransform>
|
|
|
|
namespace pdf
|
|
{
|
|
|
|
struct PDFMeshQualitySettings
|
|
{
|
|
/// Initializes default resolution
|
|
void initResolution();
|
|
|
|
/// Value used to compute minimal pxiel size resolution (it is multiplied by whole shading area size)
|
|
PDFReal minimalMeshResolutionRatio = 0.005;
|
|
|
|
/// Value used to compute pixel size resolution (it is multiplied by whole shading area size)
|
|
PDFReal preferredMeshResolutionRatio = 0.02;
|
|
|
|
/// Matrix, which transforms user space points (user space is target space of the shading)
|
|
/// to the device space of the paint device.
|
|
QTransform userSpaceToDeviceSpaceMatrix;
|
|
|
|
/// Rectangle in device space coordinate system, onto which is area meshed.
|
|
QRectF deviceSpaceMeshingArea;
|
|
|
|
/// Preferred mesh resolution in device space pixels. Mesh will be created in this
|
|
/// resolution, if it is smooth enough (no jumps in colors occurs).
|
|
PDFReal preferredMeshResolution = 1.0;
|
|
|
|
/// Minimal mesh resolution in device space pixels. If jumps in colors occurs (jump
|
|
/// is two colors, that differ more than \p color tolerance), then mesh is meshed to
|
|
/// minimal mesh resolution.
|
|
PDFReal minimalMeshResolution = 1.0;
|
|
|
|
/// Color tolerance - 1% by default
|
|
PDFReal tolerance = 0.01;
|
|
|
|
/// Test points to determine maximal curvature of the tensor product patch meshes
|
|
PDFInteger patchTestPoints = 64;
|
|
|
|
/// Lower value of the surface curvature meshing resolution mapping. When ratio between
|
|
/// current curvature at the center of meshed triangle and maximal curvature is below
|
|
/// this value, then prefered mesh resolution is used. If ratio is higher than this value
|
|
/// and lower than \p patchResolutionMappingRatioHigh, then target length is linearly mapped.
|
|
/// If value is higher, than \p patchResolutionMappingRatioHigh, then minimal mesh resolution
|
|
/// is used when generating triangles on the patch.
|
|
PDFReal patchResolutionMappingRatioLow = 0.3;
|
|
|
|
/// Highter value of the surface curvature meshing resolution mapping. \sa patchResolutionMappingRatioLow
|
|
PDFReal patchResolutionMappingRatioHigh = 0.9;
|
|
};
|
|
|
|
} // namespace pdf
|
|
|
|
#endif // PDFMESHQUALITYSETTINGS_H
|