qVoxFallTools.h

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// ----------------------------------------------------------------------------
// -                        CloudViewer: www.cloudViewer.org                  -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.cloudViewer.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
#pragma once
 
// cloudViewer
#include <GenericProgressCallback.h>
 
// local
#include "qVoxFallDialog.h"
 
// qCC_db
#include <ecvBox.h>
#include <ecvGLMatrix.h>
#include <ecvMesh.h>
#include <ecvPointCloud.h>
#include <ecvScalarField.h>
 
#include <unordered_map>
 
class qVoxFallTransform {
    double az;
    float zRot;
 
public:
    ccGLMatrix matrix;
    ccGLMatrix inverse;
    qVoxFallTransform(double azimuth) {
        az = azimuth;
        zRot = GetRotationAngle(azimuth);
 
        const Vector3Tpl<float> X(std::cos(zRot), std::sin(zRot), 0);
        const Vector3Tpl<float> Y(-std::sin(zRot), std::cos(zRot), 0);
        const Vector3Tpl<float> Z(0, 0, 1);
        const Vector3Tpl<float> Tr(0, 0, 0);
        matrix = ccGLMatrix(X, Y, Z, Tr);
 
        const Vector3Tpl<float> rX(std::cos(-zRot), std::sin(-zRot), 0);
        const Vector3Tpl<float> rY(-std::sin(-zRot), std::cos(-zRot), 0);
        const Vector3Tpl<float> rZ(0, 0, 1);
        const Vector3Tpl<float> rTr(0, 0, 0);
        inverse = ccGLMatrix(rX, rY, rZ, rTr);
    }
 
    static ccBox* CreateVoxelMesh(CCVector3 V, float voxelSize, int voxelIdx);
 
private:
    static float GetRotationAngle(double azimuth);
};
 
class qVoxFallTools {
public:
    static std::vector<Tuple3i> FindAdjacents(Tuple3i V,
                                              CCVector3 steps,
                                              bool facetsOnly);
 
    static int Grid2Index(Tuple3i n, CCVector3 steps);
 
    static Tuple3i Index2Grid(unsigned index, CCVector3 steps);
};