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‎TrunkMeshVolume/TreeMeshing.js

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/// <reference path="C:\Program Files\Leica Geosystems\Cyclone 3DR 19.1\Script\JsDoc\Reshaper.d.ts"/>
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// ------------------------ HOW TO USE IT --------------------------------------------
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// The algorithm uses the selected cloud to mesh it using this tree meshing strategy! => Make sure only 1 cloud is selected before launching the script
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//
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// ------------------------ ALGORITHM USED --------------------------------------------
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// 1. The algorithm creates slices of defined depth in the point cloud at regular steps in Z
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// 2. A section of each slice is created using the convex hull algorithm
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// 3. The sections are joined in order to create a watertight mesh
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//
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// ------------------------ PARAMETERS --------------------------------------------
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// Parameter explanations:
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// 1. Slice step: distance between the sections that have to be created
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// 2. Slice depth: depth of each section for creating the convex hull
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//
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function ErrorMessage(_iMessage // [in] the error message
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, _iThrowError = true // [in] should we throw an error (default value: true)
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) {
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var _iThrowError = (typeof _iThrowError !== 'undefined') ? _iThrowError : true;
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var myDlg = SDialog.New("Error Message");
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myDlg.AddLine(_iMessage, false, {}, 1);
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myDlg.Execute();
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if (_iThrowError)
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throw new Error(_iMessage);
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}
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function mainTreeMeshing() {
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// retrieving the cloud to mesh with this approach
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var selClouds = SCloud.FromSel();
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if (selClouds.length != 1)
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ErrorMessage("This script needs 1 cloud to be selected")
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var theCloud = selClouds[0];
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//Enter the input data
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var theDialog = SDialog.New('Tree meshing parameters');
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theDialog.AddLine("Slice step: ", true, {}, 1);
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theDialog.AddLine("Slice depth: ", true, {}, 0.5);
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var result = theDialog.Execute();
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if (result.ErrorCode != 0)// result == 0 means the user click on the "OK" button
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ErrorMessage("Operation canceled");
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var Param_Slice_Step = parseFloat(result.InputTbl[0]);
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var Param_Slice_Depth = parseFloat(result.InputTbl[1]);
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// looking for the different heights at which we will create the mesh
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var ZVect = SVector.New(0, 0, 1);
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var centroid = theCloud.GetCentroid().Point;
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var LPt = theCloud.GetLowestPoint(ZVect).Point.GetZ();
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var UPt = theCloud.GetHighestPoint(SVector.New(0, 0, 1)).Point.GetZ();
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if (UPt - LPt < 2 * Param_Slice_Step)
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ErrorMessage("Too few steps will be created to mesh")
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var NStep = Math.round((UPt - LPt) / Param_Slice_Step);
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// looping on each height to create the convex contours
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var allMultis = new Array;
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for (var iHeight = 0; iHeight < NStep; iHeight++) {
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var curZ = LPt + iHeight * Param_Slice_Step;
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var locPoint = SPoint.New(centroid.GetX(), centroid.GetY(), curZ);
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var curPlane = SPlane.New(locPoint, ZVect, SVector.New(1, 0, 0), 1, 1);
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var localCloud = theCloud.SeparateFeature(curPlane, Param_Slice_Depth, SCloud.FILL_IN_ONLY).InCloud;
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var convContRes = localCloud.GetConvexContour(ZVect, locPoint, false);
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if (convContRes.ErrorCode != 0)
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ErrorMessage("Error when extracting convex contours")
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allMultis.push(convContRes.Multi)
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}
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// creating the meshes at each heights
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var allPolys = new Array;
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// adding bottom
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var bottomRes = SPoly.ConstraintMesh2D(null, [allMultis[0]], ZVect, 0, 0);
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if (bottomRes.ErrorCode != 0 || bottomRes.PolyTbl.length != 1)
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ErrorMessage("Error when creating bottom")
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allPolys.push(bottomRes.PolyTbl[0])
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// looping on each height
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for (var iHeight = 0; iHeight < NStep - 1; iHeight++) {
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var locLMultis = new Array;
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locLMultis.push(allMultis[iHeight])
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locLMultis.push(allMultis[iHeight + 1])
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var meshRes = SPoly.JoinContour(locLMultis, [], 0, 0, 0, false, 0);
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if (meshRes.ErrorCode != 0)
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ErrorMessage("Error when joining contours")
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allPolys.push(meshRes.Poly)
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}
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// adding top
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var topRes = SPoly.ConstraintMesh2D(null, [allMultis[allMultis.length - 1]], ZVect, 0, 0);
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if (topRes.ErrorCode != 0 || topRes.PolyTbl.length != 1)
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ErrorMessage("Error when creating top")
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allPolys.push(topRes.PolyTbl[0])
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// merging the results (final should be only 1 filled mesh)
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var resMerge = SPoly.MergeCommonBorders(allPolys, SPoly.SIMPLE);
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if (resMerge.ErrorCode != 0)
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ErrorMessage("Error when mergin meshes")
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var finalMeshes = resMerge.PolyTbl;
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for (var iMesh = 0; iMesh < finalMeshes.length; iMesh++) {
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finalMeshes[iMesh].SetName(theCloud.GetName())
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finalMeshes[iMesh].AddToDoc();
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}
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}
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mainTreeMeshing()

‎TrunkMeshVolume/TrunkMeshing.js

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/// <reference path="C:\Program Files\Leica Geosystems\Cyclone 3DR 19.1\Script\JsDoc\Reshaper.d.ts"/>
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// ------------------------ HOW TO USE IT --------------------------------------------
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// This algoritm is a modification of the TreeMeshing.js. The algorithm uses the selected clouds to mesh them using this trunk meshing strategy! => Make sure to select the clouds firts
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//
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// ------------------------ ALGORITHM USED --------------------------------------------
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// 1. The algorithm creates slices of defined depth in the point cloud at regular steps in Z
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// 2. A section of each slice is created using the convex hull algorithm
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// 3. The sections are joined in order to create a watertight mesh
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// 4. MODIFICATION - it also calculates the total volume
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//
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// ------------------------ PARAMETERS --------------------------------------------
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// Parameter explanations:
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// 1. Slice step: distance between the sections that have to be created
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// 2. Slice depth: depth of each section for creating the convex hull
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//
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function ErrorMessage(_iMessage // [in] the error message
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, _iThrowError = true // [in] should we throw an error (default value: true)
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) {
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var _iThrowError = (typeof _iThrowError !== 'undefined') ? _iThrowError : true;
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var myDlg = SDialog.New("Error Message");
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myDlg.AddLine(_iMessage, false, {}, 1);
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myDlg.Execute();
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if (_iThrowError)
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throw new Error(_iMessage);
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}
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function mainTreeMeshing() {
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// Total Volume
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var VolumeTotal = 0
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// retrieving the cloud to mesh with this approach
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var selClouds = SCloud.FromSel();
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if (selClouds.length == 0)
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ErrorMessage("Esqueceu de selecionar as nuvens de pontos!")
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for (let i = 0; i<selClouds.length; i++) {
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var theCloud = selClouds[i];
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//Enter the input data
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//var theDialog = SDialog.New('Tree meshing parameters');
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//theDialog.AddLine("Slice step: ", true, {}, 1);
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//theDialog.AddLine("Slice depth: ", true, {}, 0.5);
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//var result = theDialog.Execute();
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//if (result.ErrorCode != 0)// result == 0 means the user click //on the "OK" button
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//ErrorMessage("Operation canceled");
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var Param_Slice_Step = 1 //parseFloat(result.InputTbl[0]);
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var Param_Slice_Depth = 0.5 //parseFloat(result.InputTbl[1]);
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// looking for the different heights at which we will create the mesh
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var ZVect = SVector.New(0, 0, 1);
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var centroid = theCloud.GetCentroid().Point;
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var LPt = theCloud.GetLowestPoint(ZVect).Point.GetZ();
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var UPt = theCloud.GetHighestPoint(SVector.New(0, 0, 1)).Point.GetZ();
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try{
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if (UPt - LPt < 2 * Param_Slice_Step)
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console.error('Too few steps will be created to mesh')
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//ErrorMessage("Too few steps will be created to mesh")
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} catch (error) {
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//console.error('An error occurred:', error);
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continue;
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}
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var NStep = Math.round((UPt - LPt) / Param_Slice_Step);
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// looping on each height to create the convex contours
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var allMultis = new Array;
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for (var iHeight = 0; iHeight < NStep; iHeight++) {
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var curZ = LPt + iHeight * Param_Slice_Step;
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var locPoint = SPoint.New(centroid.GetX(), centroid.GetY(), curZ);
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var curPlane = SPlane.New(locPoint, ZVect, SVector.New(1, 0, 0), 1, 1);
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var localCloud = theCloud.SeparateFeature(curPlane, Param_Slice_Depth, SCloud.FILL_IN_ONLY).InCloud;
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try{
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var convContRes = localCloud.GetConvexContour(ZVect, locPoint, false);
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if (convContRes.ErrorCode != 0)
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console.error("Error when extracting convex contours")
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} catch (error) {
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continue;
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//ErrorMessage("Error when extracting convex contours")
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}
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allMultis.push(convContRes.Multi)
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}
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// creating the meshes at each heights
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var allPolys = new Array;
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// adding bottom
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try{
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var bottomRes = SPoly.ConstraintMesh2D(null, [allMultis[0]], ZVect, 0, 0);
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if (bottomRes.ErrorCode != 0 || bottomRes.PolyTbl.length != 1)
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console.error('Error when creating bottom')
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//ErrorMessage("Too few steps will be created to mesh")
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} catch (error) {
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//console.error('An error occurred:', error);
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continue;
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}
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//ErrorMessage("Error when creating bottom")
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allPolys.push(bottomRes.PolyTbl[0])
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// looping on each height
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for (var iHeight = 0; iHeight < NStep - 1; iHeight++) {
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var locLMultis = new Array;
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locLMultis.push(allMultis[iHeight])
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locLMultis.push(allMultis[iHeight + 1])
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try {
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var meshRes = SPoly.JoinContour(locLMultis, [], 0, 0, 0, false, 0);
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if (meshRes.ErrorCode != 0)
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console.error("Error when joining contours")
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} catch (error) {
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continue;
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//ErrorMessage("Error when joining contours")
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}
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allPolys.push(meshRes.Poly)
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}
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// adding top
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try {
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var topRes = SPoly.ConstraintMesh2D(null, [allMultis[allMultis.length - 1]], ZVect, 0, 0);
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if (topRes.ErrorCode != 0 || topRes.PolyTbl.length != 1)
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console.error("Error when creating top")
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} catch (error) {
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//ErrorMessage("Error when creating top")
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continue;
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}
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allPolys.push(topRes.PolyTbl[0])
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// merging the results (final should be only 1 filled mesh)
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try {
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var resMerge = SPoly.MergeCommonBorders(allPolys, SPoly.SIMPLE);
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if (resMerge.ErrorCode != 0)
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console.error("Error when mergin meshes")
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} catch (error) {
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continue;
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//ErrorMessage("Error when mergin meshes")
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}
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var finalMeshes = resMerge.PolyTbl;
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for (var iMesh = 0; iMesh < finalMeshes.length; iMesh++) {
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finalMeshes[iMesh].SetName(theCloud.GetName())
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finalMeshes[iMesh].AddToDoc();
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}
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//print())
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VolumeTotal = VolumeTotal + finalMeshes[0].GetVolume().Volume;
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console.log("Done", i)
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}
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print((`O Volume Total é: ${VolumeTotal} unidades de volume`))
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}
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mainTreeMeshing()

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