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Java implementation of BSP based CSG (Constructive Solid Geometry)
/*
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*/
package eu.mihosoft.vrl.v3d;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import java.nio.file.Path;
import java.nio.file.Paths;
/**
*
* @author Michael Hoffer <[email protected]>
*/
public final class ObjFile {
private String obj;
private final String mtl;
private InputStream objStream;
private InputStream mtlStream;
static final String MTL_NAME = "$JCSG_MTL_NAME$";
ObjFile(String obj, String mtl) {
this.obj = obj;
this.mtl = mtl;
}
public void toFiles(Path p) throws IOException {
Path parent = p.getParent();
String fileName = p.getFileName().toString();
if (fileName.toLowerCase().endsWith(".obj")
|| fileName.toLowerCase().endsWith(".mtl")) {
fileName = fileName.substring(0, fileName.length() - 4);
}
String objName = fileName + ".obj";
String mtlName = fileName + ".mtl";
obj = obj.replace(MTL_NAME, mtlName);
objStream = null;
if (parent == null) {
FileUtil.write(Paths.get(objName), obj);
FileUtil.write(Paths.get(mtlName), mtl);
} else {
FileUtil.write(Paths.get(parent.toString(), objName), obj);
FileUtil.write(Paths.get(parent.toString(), mtlName), mtl);
}
}
public String getObj() {
return this.obj;
}
public String getMtl() {
return this.mtl;
}
public InputStream getObjStream() {
if (objStream == null) {
objStream = new ByteArrayInputStream(obj.getBytes(StandardCharsets.UTF_8));
}
return objStream;
}
public InputStream getMtlStream() {
if (mtlStream == null) {
mtlStream = new ByteArrayInputStream(mtl.getBytes(StandardCharsets.UTF_8));
}
return mtlStream;
}
}