org.reprap.geometry.polygons
Class AllSTLsToBuild

java.lang.Object
  org.reprap.geometry.polygons.AllSTLsToBuild

public class AllSTLsToBuild
extends java.lang.Object

This class holds a list of STLObjects that represents everything that is to be built. An STLObject may consist of items from several STL files, possible of different materials. But they are all tied together relative to each other in space.

Author:

Adrian

Nested Class Summary

(package private) class	AllSTLsToBuild.BoundingBox 3D bounding box
(package private) class	AllSTLsToBuild.LineSegment Line segment consisting of two points.
(package private) class	AllSTLsToBuild.SliceCache Ring buffer cache to hold previously computed slices for doing infill and support material calculations.

Field Summary

private AllSTLsToBuild.SliceCache	cache Recently computed slices
private boolean	frozen Is the list editable?
private java.util.List<STLObject>	newstls New list of things to be built for reordering
private java.util.List<RrRectangle>	rectangles A plan box round each item
private java.util.List<STLObject>	stls The list of things to be built
private AllSTLsToBuild.BoundingBox	XYZbox The XYZ box around everything
private RrInterval	Zrange The lowest and highest points

Constructor Summary

AllSTLsToBuild()
Simple constructor

Method Summary

void	add(AllSTLsToBuild a) Add a new collection
void	add(STLObject s) Add a new STLObject
private void	addAllEdges(javax.media.j3d.Shape3D shape, javax.media.j3d.Transform3D trans, double z, Attributes att, java.util.ArrayList<AllSTLsToBuild.LineSegment>[] edges) Run through a Shape3D and set edges from it at plane z Apply the transform first
private void	addEdge(javax.vecmath.Point3d p, javax.vecmath.Point3d q, javax.vecmath.Point3d r, double z, Attributes att, java.util.ArrayList<AllSTLsToBuild.LineSegment>[] edges) Add the edge where the plane z cuts the triangle (p, q, r) (if it does).
private AllSTLsToBuild.BoundingBox	BBox(java.lang.Object value, javax.media.j3d.Transform3D trans) Unpack the Shape3D(s) from value and find their exclosing XYZ box
private AllSTLsToBuild.BoundingBox	BBoxPoints(javax.media.j3d.Shape3D shape, javax.media.j3d.Transform3D trans) Run through a Shape3D and find its enclosing XYZ box
RrPolygonList	computeInfill(int stl, LayerRules layerConditions) Compute the infill hatching polygons for this set of patterns
RrPolygonList	computeOutlines(int stl, LayerRules layerConditions, RrPolygonList hatchedPolygons, boolean shield) Compute the outline polygons for this set of patterns.
RrPolygonList	computeSupport(int stl, LayerRules layerConditions) Compute the support hatching polygons for this set of patterns
void	destroyLayer()
private int	findSTL(STLObject st) Find an object in the list
private void	freeze() Freeze the list - no more editing.
STLObject	get(int i) Get the i-th STLObject
STLObject	getNextOne(STLObject st) Find an object in the list and return the next one.
private RrPolygon	getNextPolygon(java.util.ArrayList<AllSTLsToBuild.LineSegment> edges) Stitch together the some of the edges to form a polygon.
double	maxZ() Find the top of the highest object.
RrRectangle	ObjectPlanRectangle() Return the XY box round everything
private void	recursiveSetEdges(java.lang.Object value, javax.media.j3d.Transform3D trans, double z, Attributes att, java.util.ArrayList<AllSTLsToBuild.LineSegment>[] edges) Unpack the Shape3D(s) from value and set edges from them
void	remove(int i) Delete an object
boolean	reorderAdd(STLObject st) Reorder the list under user control.
private RrPolygonList	simpleCull(java.util.ArrayList<AllSTLsToBuild.LineSegment> edges) Get all the polygons represented by the edges.
int	size() Return the number of objects.
private BooleanGridList	slice(int stl, int layer, LayerRules layerRules) Generate a set of pixel-map representations, one for each extruder, for STLObject stl at height z.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

stls

private java.util.List<STLObject> stls

The list of things to be built

rectangles

private java.util.List<RrRectangle> rectangles

A plan box round each item

newstls

private java.util.List<STLObject> newstls

New list of things to be built for reordering

XYZbox

private AllSTLsToBuild.BoundingBox XYZbox

The XYZ box around everything

Zrange

private RrInterval Zrange

The lowest and highest points

frozen

private boolean frozen

Is the list editable?

cache

private AllSTLsToBuild.SliceCache cache

Recently computed slices

Constructor Detail

AllSTLsToBuild

public AllSTLsToBuild()

Simple constructor

Method Detail

add

public void add(STLObject s)

Add a new STLObject

Parameters:

s -

add

public void add(AllSTLsToBuild a)

Add a new collection

Parameters:

s -

get

public STLObject get(int i)

Get the i-th STLObject

Parameters:

i -

Returns:

remove

public void remove(int i)

Delete an object

Parameters:

i -

findSTL

private int findSTL(STLObject st)

Find an object in the list

Parameters:

st -

Returns:

getNextOne

public STLObject getNextOne(STLObject st)

Find an object in the list and return the next one.

Parameters:

st -

Returns:

size

public int size()

Return the number of objects.

Returns:

reorderAdd

public boolean reorderAdd(STLObject st)

Reorder the list under user control. The user sends items from the old list one by one. These are added to a new list in that order. When there's only one left that is added last automatically. Needless to say, this process must be carried through to completion. The function returns true while the process is ongoing, false when it's complete.

Parameters:

st -

Returns:

freeze

private void freeze()

Freeze the list - no more editing. Also compute the XY box round everything. Also compute the individual plan boxes round each STLObject.

BBoxPoints

private AllSTLsToBuild.BoundingBox BBoxPoints(javax.media.j3d.Shape3D shape,
                                              javax.media.j3d.Transform3D trans)

Run through a Shape3D and find its enclosing XYZ box

Parameters:

shape -

trans -

z -

BBox

private AllSTLsToBuild.BoundingBox BBox(java.lang.Object value,
                                        javax.media.j3d.Transform3D trans)

Unpack the Shape3D(s) from value and find their exclosing XYZ box

Parameters:

value -

trans -

z -

ObjectPlanRectangle

public RrRectangle ObjectPlanRectangle()

Return the XY box round everything

Returns:

maxZ

public double maxZ()

Find the top of the highest object. Calling this freezes the list.

Returns:

getNextPolygon

private RrPolygon getNextPolygon(java.util.ArrayList<AllSTLsToBuild.LineSegment> edges)

Stitch together the some of the edges to form a polygon.

Parameters:

edges -

Returns:

simpleCull

private RrPolygonList simpleCull(java.util.ArrayList<AllSTLsToBuild.LineSegment> edges)

Get all the polygons represented by the edges.

Parameters:

edges -

Returns:

computeSupport

public RrPolygonList computeSupport(int stl,
                                    LayerRules layerConditions)

Compute the support hatching polygons for this set of patterns

Parameters:

stl -

layerConditions -

Returns:

computeInfill

public RrPolygonList computeInfill(int stl,
                                   LayerRules layerConditions)

Compute the infill hatching polygons for this set of patterns

Parameters:

stl -

layerConditions -

startNearHere -

Returns:

computeOutlines

public RrPolygonList computeOutlines(int stl,
                                     LayerRules layerConditions,
                                     RrPolygonList hatchedPolygons,
                                     boolean shield)

Compute the outline polygons for this set of patterns.

Parameters:

layerConditions -

hatchedPolygons -

shield -

Returns:

slice

private BooleanGridList slice(int stl,
                              int layer,
                              LayerRules layerRules)

Generate a set of pixel-map representations, one for each extruder, for STLObject stl at height z.

Parameters:

stl -

z -

extruders -

Returns:

destroyLayer

public void destroyLayer()

addEdge

private void addEdge(javax.vecmath.Point3d p,
                     javax.vecmath.Point3d q,
                     javax.vecmath.Point3d r,
                     double z,
                     Attributes att,
                     java.util.ArrayList<AllSTLsToBuild.LineSegment>[] edges)

Add the edge where the plane z cuts the triangle (p, q, r) (if it does). Also update the triangulation of the object below the current slice used for the simulation window.

Parameters:

p -

q -

r -

z -

addAllEdges

private void addAllEdges(javax.media.j3d.Shape3D shape,
                         javax.media.j3d.Transform3D trans,
                         double z,
                         Attributes att,
                         java.util.ArrayList<AllSTLsToBuild.LineSegment>[] edges)

Run through a Shape3D and set edges from it at plane z Apply the transform first

Parameters:

shape -

trans -

z -

recursiveSetEdges

private void recursiveSetEdges(java.lang.Object value,
                               javax.media.j3d.Transform3D trans,
                               double z,
                               Attributes att,
                               java.util.ArrayList<AllSTLsToBuild.LineSegment>[] edges)

Unpack the Shape3D(s) from value and set edges from them

Parameters:

value -

trans -

z -