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3D rendering engine. Plus modeling. Expected glsl textures 3d and 2d rendering
/*
* Copyright (c) 2023.
*
*
* Copyright 2012-2023 Manuel Daniel Dahmen
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*
*/
/*
* This file is part of Empty3.
*
* Empty3 is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Empty3 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Empty3. If not, see children = new ArrayList();
protected TreeNode parent;
protected String expressionString;
public TreeNode(String expStr) {
this.parent = null;
if (expStr.trim().isEmpty())
expressionString = "0.0";
this.expressionString = expStr;
}
/***
* Base constructor for all TreeNodes
* @param src parent (!=null)
* @param objects [0] = expressionString
* @param clazz type associated to this TreeNode
*/
public TreeNode(TreeNode src, Object[] objects, TreeNodeType clazz) {
this.parent = src;
this.objects = objects;
clazz.instantiate(objects);
this.type = clazz;
expressionString = (String) objects[0];
}
public Object getValue() {
return value;
}
public void setValue(TreeNodeValue value) {
this.value = value;
}
public StructureMatrix eval() throws TreeNodeEvalException, AlgebraicFormulaSyntaxException {
/*if(this instanceof TreeNode) {
return Double.parseDouble(((TreeNode) this).expressionString);
}*/
TreeNodeType cType = (getChildren().size() == 0) ? type : getChildren().get(0).type;
StructureMatrix evalRes = null;
if (cType instanceof VectorTreeNodeType) {
evalRes = new StructureMatrix<>(1, Double.class);
} else {
evalRes = new StructureMatrix<>(0, Double.class);
evalRes.setElem(0.0);
}
if (cType instanceof IdentTreeNodeType) {
System.out.println("cType Ident=" + getChildren().size());
System.out.println("cType Ident=" + getChildren().get(0).eval());
return getChildren().get(0).eval();
} else if (cType instanceof EquationTreeNodeType) {
switch (getChildren().get(0).eval().getDim()) {
case 0:
return evalRes.setElem(getChildren().get(0).eval().getElem());
case 1:
StructureMatrix eval = getChildren().get(0).eval();
for (int i = 0; i < eval.data1d.size(); i++)
evalRes.setElem(eval.getElem(i), i);
return evalRes;
default:
break;
}
switch (getChildren().get(1).eval().getDim()) {
case 0:
evalRes.setElem(getChildren().get(1).eval().getElem());
break;
case 1:
int size = evalRes.data1d.size();
StructureMatrix eval = getChildren().get(1).eval();
for (int i = 0; i < eval.data1d.size(); i++)
evalRes.setElem(eval.getElem(i), i + size);
break;
default:
break;
}
return evalRes;//TO REVIEW
} else if (cType instanceof DoubleTreeNodeType) {
return cType.eval();
} else if (cType instanceof VariableTreeNodeType) {
try {
return cType.eval();
} catch (RuntimeException ex) {
return getChildren().get(0).eval();//cType.eval();
}
} else if (cType instanceof PowerTreeNodeType) {
StructureMatrix eval1 = getChildren().get(0).eval();
StructureMatrix eval2 = getChildren().get(1).eval();
int dim1, dim2;
if (eval1.getDim() == 1 && eval2.getDim() == 1) {
dim1 = eval1.data1d.size();
dim2 = eval2.data1d.size();
for(int i=0; i(1, Double.class);
evalRes.setElem(point3Dres.get(0), 0);
evalRes.setElem(point3Dres.get(1), 1);
evalRes.setElem(point3Dres.get(2), 2);
return evalRes;
} else if(dim1==dim2 && dim1==2) {
Point2D point2D1 = new Point2D(eval1.data1d.get(0), eval1.data1d.get(1));
Point2D point2D2 = new Point2D(eval2.data1d.get(0), eval2.data1d.get(1));
Point2D point3Dres = new Point2D(eval1.data1d.get(0)*eval2.data1d.get(1), eval1.data1d.get(1)*eval2.data1d.get(0));
evalRes = new StructureMatrix<>(1, Double.class);
evalRes.setElem(point3Dres.get(0), 0);
evalRes.setElem(point3Dres.get(1), 1);
return evalRes;
}
}
} else if (evalRes.getDim() == 0) {
return evalRes.setElem(Math.pow((Double) getChildren().get(0).eval().getElem(), (Double) getChildren().get(1).eval().getElem()));
}
} else if (cType instanceof FactorTreeNodeType) {
if (getChildren().size() == 1) {
evalRes = getChildren().get(0).eval();///SIGN
if (evalRes.getDim() == 1) {
return evalRes;
} else if (evalRes.getDim() == 0) {
double v = ((Double) getChildren().get(0).eval().getElem()) * getChildren().get(0).type.getSign1();
return evalRes.setElem(v);
}
return evalRes;
} else if (getChildren().size() > 1) {
double dot = 1.0;
TreeNode treeNode1 = getChildren().get(0);
int dim = treeNode1.eval().getDim();
if (dim == 1)
evalRes = new StructureMatrix<>(1, Double.class);
else if(dim==0){
evalRes = new StructureMatrix<>(0, Double.class);
evalRes.setElem(1.0);
}
int dim0 = dim;
for (int i = 0; i < getChildren().size(); i++) {
TreeNode treeNode = getChildren().get(i);
StructureMatrix treeNodeEval = treeNode.eval();
dim = treeNodeEval.getDim();
double op1;
Double mult = 1.0;
if (treeNodeEval.getDim() == 1) {
if(dim0==0 && dim==1) {
mult = getChildren().get(0).eval().getElem();
dim0 = -1;
}
if(evalRes.data1d.size()!=treeNodeEval.data1d.size()) {
int leftOp = evalRes.data1d.size();
int rightOp = treeNodeEval.data1d.size();
}
for (int j = 0; j < treeNodeEval.data1d.size(); j++) {
if (treeNode.type instanceof FactorTreeNodeType) {
double e = 1.0;
if (evalRes.data1d != null && j < evalRes.data1d.size()) {
e = evalRes.getElem(j);
}
op1 = ((FactorTreeNodeType) treeNode.type).getSignFactor();
if (op1 == 1) {
dot = ((Double) treeNode.eval().getElem(j)) * e;
evalRes.setElem(dot*mult, j);
} else {
dot = 1. / ((Double) (Double) treeNode.eval().getElem(j)) * e;///treeNode.type.getSign1()) *
evalRes.setElem(dot*mult, j);
}
}
}
} else if (treeNodeEval.getDim() == 0) {
if (treeNode.type instanceof FactorTreeNodeType) {
op1 = ((FactorTreeNodeType) treeNode.type).getSignFactor();
if (op1 == 1) {
dot = ((Double) treeNodeEval.getElem()*treeNode.type.getSign1());
evalRes.setElem(dot * evalRes.getElem());
} else {
dot = 1. / ((Double) treeNodeEval.getElem()*treeNode.type.getSign1());///treeNode.type.getSign1()) *
evalRes.setElem(dot * evalRes.getElem());
}
}
}
dim0 = dim;
}
}
return evalRes;
} else if (cType instanceof TermTreeNodeType) {
if (getChildren().size() == 1) {
return evalRes.setElem(((Double) getChildren().get(0).eval().getElem()) * getChildren().get(0).type.getSign1());
}
double sum = 0.0;
int dimChild0 = getChildren().get(0).eval().getDim();
if (dimChild0 == 0) {
evalRes = new StructureMatrix<>(0, Double.class);
} else {
evalRes = new StructureMatrix<>(1, Double.class);
for(int j=0; j eval = treeNode1.eval();
if(treeNode1.type instanceof TermTreeNodeType) {
if (eval.getDim() == 1) {
for (int j = 0; j < eval.data1d.size(); j++) {
double e = 0.0;
if (evalRes.data1d != null && j < evalRes.data1d.size()) {
e = evalRes.getElem(j);
} else {
evalRes.setElem(e, j);
}
evalRes.setElem(e + eval.getElem(j)*op1, j);
}
System.err.println("In TreeNode.eval #TermTreeNodeType");
} else if (eval.getDim() == 0) {
sum = op1 * (Double) ((eval.getElem() == null) ? 0.0 : eval.getElem());
double evalSum = (evalRes.getElem() == null) ? 0.0 : evalRes.getElem();
evalRes.setElem(sum + evalSum);
}
}
}
return evalRes;
} else if (cType instanceof TreeTreeNodeType) {
if (!getChildren().isEmpty()) {
if (!getChildren().get(0).getChildren().isEmpty() &&
getChildren().get(0).getChildren().get(0).type instanceof VectorTreeNodeType) {
evalRes = new StructureMatrix<>(1, Double.class);
switch (evalRes.getDim()) {
case 0:
for (int i = 0; i < getChildren().get(0).getChildren().size(); i++) {
StructureMatrix eval = getChildren().get(0).getChildren().get(i).eval();
evalRes.setElem(eval.getElem(i), i);
}
break;
case 1:
int k = 0;
for (int i = 0; i < getChildren().get(0).getChildren().size(); i++) {
StructureMatrix eval = getChildren().get(0).getChildren().get(i).eval();
if (eval.getDim() == 1) {
for (int j = 0; j < eval.data1d.size(); j++) {
evalRes.setElem(eval.getElem(j), k++);
}
} else if (eval.getDim() == 0) {
evalRes.setElem(eval.getElem(), k++);
}
}
break;
}
return evalRes;
} else {
StructureMatrix eval = getChildren().get(0).eval();
if (eval.getDim() == 1) {
for (int i = 0; i < eval.data1d.size(); i++) {
evalRes.setElem(eval.getElem(i), i);
}
} else if (eval.getDim() == 0) {
evalRes.setElem(eval.getElem());
}
}
return evalRes;
}
return null;
} else if (cType instanceof SignTreeNodeType) {
double s1 = ((SignTreeNodeType) cType).getSign();
StructureMatrix eval;
if (!getChildren().isEmpty()) {
eval = getChildren().get(0).eval();
} else {
eval = evalRes.setElem(0.0);
}
if (eval.getDim() == 1) {
for (int i = 0; i < eval.data1d.size(); i++) {
evalRes.setElem(eval.getElem(i) * s1, i);
}
} else if (eval.getDim() == 0) {
evalRes.setElem(s1 * eval.getElem());
}
return evalRes;
} else if (cType instanceof VectorTreeNodeType) {
evalRes = new StructureMatrix<>(1, Double.class);
for (int i = 0; i < getChildren().get(0).getChildren().size(); i++) {
StructureMatrix eval = getChildren().get(0).getChildren().get(i).eval();///!!!
evalRes.setElem(eval.getElem(i), i);
}
return evalRes;
}
StructureMatrix eval = new StructureMatrix<>(0, Double.class);
if (type != null) {
eval = type.eval();
} else if (!getChildren().isEmpty()) {
eval = getChildren().get(0).eval();
}
return eval == null ? evalRes.setElem(0.0) : eval;
}
public ArrayList getChildren() {
return children;
}
public void setChildren(ArrayList children) {
this.children = children;
}
public TreeNode getParent() {
return parent;
}
public void setParent(TreeNode parent) {
this.parent = parent;
}
public String getExpressionString() {
return expressionString;
}
public void setExpressionString(String expressionString) {
this.expressionString = expressionString;
}
@NotNull
public String toString() {
String s = "TreeNode " + this.getClass().getSimpleName() +
"\nExpression string: " + expressionString +
(type == null ? "Type null" :
"Type: " + type.getClass() + "\n " + type.toString()) +
"\nChildren: " + getChildren().size() + "\n";
int i = 0;
for (TreeNode t :
getChildren()) {
s += "Child (" + i++ + ") : " + t.toString() + "\n";
}
return s + "\n";
}
}