# source:cpp/frams/_demos/geometry/info_test.cpp@286

Last change on this file since 286 was 286, checked in by Maciej Komosinski, 9 years ago

• Property svn:eol-style set to `native`
File size: 4.1 KB
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1// This file is a part of Framsticks SDK.  http://www.framsticks.com/
2// Copyright (C) 1999-2015  Maciej Komosinski and Szymon Ulatowski.
4
5#include "geometrytestutils.h"
6#include <frams/model/geometry/geometryutils.h>
7#include <frams/model/geometry/modelgeometryinfo.h>
8#include <frams/model/model.h>
9#include <frams/util/3d.h>
10#include <stdio.h>
11
12void test(Model &model, const double density)
13{
14        // EXAMPLES ------------------------------------------------------------------------------------
15
16        // Calculating approximate volume of model. Parameter density describes minimal number of points
17        // created for each unit of length. It means, that for each cubic unit of bounding box of model,
18        // at least density^3 points will be created.
19        double volume = ModelGeometryInfo::volume(model, density);
20
21
22        // Calculating approximate surface area of model. Parameter density describes minimal number of
23        // points created for each unit of length. It means, that for each square unit of surface area
24        // of parts of model, at least density^2 points will be created.
25        double area = ModelGeometryInfo::area(model, density);
26
27
28        // Creating output variables.
29        Pt3D sizes;
30        Orient axes;
31        // Calculating approximate sizes and axes of model. These values are calculated together because
32        // they depends on each other. Sizes are distances between furthest points on model surface
33        // measured along corresponding axes. Fields sizes.x and axes.x describes the 'length' of 3D
34        // model. Fields sizes.y and axes.y desctibes 'width' of 2D model created by projecting original
35        // 3D model onto plane defined by axes.x vector. Fields sizes.z and axes.z destribes 'height' of
36        // model. Axes are perpendicular to each other. Parameter density describes minimal number of
37        // points created for each unit of length. It means, that for each square unit of surface area
38        // of parts of model, at least density^2 points will be created.
39        ModelGeometryInfo::findSizesAndAxesOfModel(model, density, sizes, axes);
40
41
42        // Creating output variables.
43        Pt3D lowerBoundary, upperBoundary;
44        // Calculationg bounding box of model. Result is stored in variables lowerBoundary and
45        // upperBoundary.
46        ModelGeometryInfo::boundingBox(model, lowerBoundary, upperBoundary);
47
48        // PRINTING RESULT -----------------------------------------------------------------------------
49
50        // Creating and preparing result Model object.
51        Model resultModel;
52        resultModel.open();
54
55        // Adding bounding markers of bounding box apices.
56        for (Octants::Octant o = Octants::FIRST; o < Octants::NUMBER; o = Octants::Octant(o+1))
57        {
58                Pt3D apex;
59                apex.x = Octants::isPositiveX(o) ? upperBoundary.x : lowerBoundary.x;
60                apex.y = Octants::isPositiveY(o) ? upperBoundary.y : lowerBoundary.y;
61                apex.z = Octants::isPositiveZ(o) ? upperBoundary.z : lowerBoundary.z;
63        }
64
65        // Adding markers of axes (intersection of axes is in the center of bounding box).
66        Pt3D intersection = (lowerBoundary + upperBoundary) * 0.5;
68
69        // Merging with original model.
70        GeometryTestUtils::mergeModels(resultModel, model);
71
72        // Finishing result Model and printing its genotype.
73        resultModel.close();
74        puts((const char*)resultModel.getF0Geno().toString());
75
76        // Printing calculated values.
77        printf("# volume=%f\n", volume);
78        printf("# area=%f\n", area);
79        printf("# sizes.x=%f sizes.y=%f sizes.z=%f\n", sizes.x, sizes.y, sizes.z);
80        printf("# axes.x=(%f, %f, %f)\n", axes.x.x, axes.x.y, axes.x.z);
81        printf("# axes.y=(%f, %f, %f)\n", axes.y.x, axes.y.y, axes.y.z);
82        printf("# axes.z=(%f, %f, %f)\n", axes.z.x, axes.z.y, axes.z.z);
83        printf("# box.x=[%f, %f]\n", lowerBoundary.x, upperBoundary.x);
84        printf("# box.y=[%f, %f]\n", lowerBoundary.y, upperBoundary.y);
85        printf("# box.z=[%f, %f]\n", lowerBoundary.z, upperBoundary.z);
86}
87
88int main(int argc, char *argv[])
89{
90        return GeometryTestUtils::execute(
91                "Calculates approximate values of surface area, volume, sizes and axes of model. Adds to "
92                "model markers of bounding box apices and axes.", argc, argv, test);
93}
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