Sweet Home 3D Forum - Print Thread - Sample plugin does not start


//version 25 Dec 2014 
//- added ability to approximate curved walls
//- added ability to work for multilevel building
//- corrected slope walls
//- filter openings substractions by Doors & windows only
//- approximate doors & windows positions to prefer more inclusions. CAUTION: may have side effects when a door or windows is in vicinity of more than one wall on any level

package com.eteks.calculateWalls;

import java.awt.geom.Point2D;
import java.lang.reflect.Method;
import java.util.ArrayList;

import com.eteks.sweethome3d.model.HomePieceOfFurniture;
import com.eteks.sweethome3d.model.Selectable;
import com.eteks.sweethome3d.model.Wall;
import com.eteks.sweethome3d.plugin.Plugin;
import com.eteks.sweethome3d.plugin.PluginAction;

import javax.swing.JOptionPane;


class CalculateWallsAction  extends PluginAction {

    private final Plugin plugin;

    public CalculateWallsAction(ClassLoader loader, Plugin plugin){
    	putPropertyValue(Property.NAME, "Compute walls' area");
        putPropertyValue(Property.MENU, "Tools");
        
        this.plugin = plugin;
        // Enables the action by default
        setEnabled(true);
    }

    private void showInfo(float size) {
        String message = "The walls' area currently is: "+size+" m\u00B2.";
    	if(size == 0)
    	{
    		message = "Please select at least one wall.";
    	}
        JOptionPane.showMessageDialog(null, message);
    }
    
    private boolean inWall(Wall w, float x, float y)
    {
    	//if(x >= Math.min(w.getXStart(), w.getXEnd()) && x <= Math.max(w.getXStart(), w.getXEnd()) && y >= Math.min(w.getYStart(), w.getYEnd()) && y <= Math.max(w.getYStart(), w.getYEnd()))
      float cmpRate = 0;
   	//generalize- just one end near the wall surface, there are two cases:
   	//case 1: an arc wall
      if(w.getArcExtent() != null)
      {
    	  float [] arcCircleCenter;
    	  float arcCircleRadius;
    	  try{ 
	          Method m = Wall.class.getDeclaredMethod("getArcCircleCenter");
	          //m.invoke(d);// throws java.lang.IllegalAccessException
	          m.setAccessible(true);// Abracadabra
	          arcCircleCenter = (float[]) m.invoke(w);// now its OK
	          arcCircleRadius = (float)Point2D.distance(w.getXStart(), w.getYStart(), 
	    	          arcCircleCenter [0], arcCircleCenter [1]);
		      cmpRate =(float)Point2D.distance(x,y,arcCircleCenter [0], arcCircleCenter [1])/arcCircleRadius;
	      } catch (Exception e) {
	          e.printStackTrace();
	      }
      }
      else
      {
	      float dist2Start = (float)Point2D.distance(x,y,w.getXStart(), w.getYStart()); 
	      cmpRate = (dist2Start + (float)Point2D.distance(x,y,w.getXEnd(), w.getYEnd()))/w.getLength(); 
    	}
	   if((cmpRate > 0.9)&&(cmpRate< 1.1)) return true;
    	return false;
    }

    @Override
    public void execute() {
    	float size = 0;
    	
    	ArrayList<Wall> walls = new ArrayList<Wall>();
    	for(Selectable sel : plugin.getHome().getSelectedItems())
    	{
    		if(sel instanceof Wall)
    		{
    			Wall wall = (Wall) sel;
    			
    			//if(wall.getArcExtent() == null)
				walls.add(wall);
    			size += (wall.getHeight() + ((wall.getHeightAtEnd()==null)? wall.getHeight():wall.getHeightAtEnd()) )*wall.getLength()/2.0;

    	    	//substracts openings
    			for(HomePieceOfFurniture furniture : plugin.getHome().getFurniture())
	        	if(furniture.isDoorOrWindow() 
	        			&& wall.isAtLevel(furniture.getLevel())
	        			&& inWall(wall, furniture.getX(), furniture.getY()))
        			size -= (furniture.getHeight()*furniture.getWidth());
    		
    		}
    	}
    	
    	size /= 10000;
    	showInfo(size);
    }
}
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