jv.geom
Class PgBndPolygon

java.lang.Object
  jv.object.PsObject
      jv.project.PgGeometry
          jv.geom.PgPointSet
              jv.geom.PgPolygon
                  jv.geom.PgBndPolygon

All Implemented Interfaces:

java.lang.Cloneable, PgGeometryIf, PsUpdateIf, java.io.Serializable

public class PgBndPolygon

extends PgPolygon

Boundary polygon of PgElementSets with reference to boundary vertices and elements. Polygon may have boundary constraints for variational problems. Call: bndsh (n, bnd) bndinv (from, to, nedges, a, b) invert() bndcp (from, to, nedges, a, b) bndcpy (from, to, nedges, a, b) bndcmp (a, b, eps) bndtst (a, eps) bnd_id (a, b, i) bnd_shrink (a) bnd_dist (a, b, dist, orient) bnd_cmp_paste (a, b, maxDist) bnd_cmp_logic (a, b, eps) bnd_paste (a, b, type) g_bnd_curve_invert (a)

See Also:

PgPointSet, Serialized Form

Field Summary

Fields inherited from class jv.geom.PgPolygon

BINORMAL, CURVATURE_NORMAL, NORMAL, OFFSET_NORMAL

Fields inherited from class jv.object.PsObject

HAS_CONFIG_PANEL, HAS_INFO_PANEL, HAS_LABEL_PANEL, HAS_MATERIAL_PANEL, HAS_TEXTURE_PANEL, HAS_VECTOR_PANEL, INSPECTOR_INFO, INSPECTOR_INFO_EXT, IS_DELETED, IS_FIXED, IS_FOCUSSED, IS_PICKED, IS_SELECTED, IS_USED, NUM_TAGS

Fields inherited from interface jv.project.PgGeometryIf

AMBIENT_H2_HYPERBOLIC, AMBIENT_H3_HYPERBOLIC, AMBIENT_H4_HYPERBOLIC, AMBIENT_PROJECTIONS, AMBIENT_R1_EUCLIDEAN, AMBIENT_R2_EUCLIDEAN, AMBIENT_R3_EUCLIDEAN, AMBIENT_R4_EUCLIDEAN, AMBIENT_R5_EUCLIDEAN, AMBIENT_S1_SPHERE, AMBIENT_S2_SPHERE, AMBIENT_S3_SPHERE, AMBIENT_S4_SPHERE, AMBIENT_SPACES, HAS_METHOD_MENU, INSPECTOR_CONTROL, INSPECTOR_CONTROL_EXT, INSPECTOR_MATERIAL, INSPECTOR_MATERIAL_EXT, INSPECTOR_TEXTURE, INSPECTOR_TEXTURE_EXT, LABEL_BASE, LABEL_CENTER, LABEL_HEAD, LABEL_MIDDLE, LABEL_TAIL, LABEL_TOP, m_numLabelTypes, METHOD_EXT, PROJ_KLEIN_BALL, PROJ_PARALLEL, PROJ_POINCARE_BALL, PROJ_STEREOGRAPHIC, PROJ_UPPER_HALFSPACE

Constructor Summary

PgBndPolygon(int aVertexDim)

Method Summary

boolean	applyModelingMatrix() Multiply the modeling matrix to all vertices and vectors.
boolean	assignVertices() Update the vertices of the polygon.
boolean	blend(double s, PgGeometry ag, double t, PgGeometry bg) Blend between two polygon using this = s*a + t*b.
int	bnd_cmp_logic(PgBndPolygon b, double maxDist) Parameters: PgBndPolygon a, pointer on structure of bnd_curve PgBndPolygon b, pointer on structure of bnd_curve Returnvalue: int 0: boundaries are not equal 1: bnd's are equal with m_vertexInd.m_data[0] = b.m_vertexInd.m_data[0] -1: bnd's are invers equal with m_vertexInd.m_data[0] = b.m_vertexInd.m_data[nop-1] Description: compare boundaries of one triang2d structure, they may have different number of vertices.
int	bnd_cmp_paste(PgBndPolygon b, double maxDist) Parameters: PgBndPolygon a, pointer on structure of bnd_curve PgBndPolygon b, pointer on structure of bnd_curve Returnvalue: int 0: boundaries cannot be pasted, angle > MAX_PASTE_ANGLE (in degrees) 11: beginning of a and b may be pasted 12: beginning of a and end of b may be pasted 21: end of a and beginning of b may be pasted 22: end of a and b may be pasted Description: compare two bnd's of a triang2d structure w.r.t. pasting
double	bnd_dist(PgBndPolygon b) Parameters: PgBndPolygon a, pointer to structure of bnd_curve PgBndPolygon b, pointer to structure of bnd_curve return: double dist distance of two boundaries int *orient 1: bnd's have same direction, i.e.
boolean	bnd_id(PgBndPolygon b, int orient) Parameters: PgBndPolygon a, pointer to structure of type bnd_curve PgBndPolygon b, pointer to structure of type bnd_curve int orient, orientation marker orient >=0 : bnd's are equal orient < 0 : bnd's are invers equal Returnvalue: --- Description: identify boundaries History: created: 29.12.97 Konrad Polthier
boolean	bnd_paste(PgBndPolygon b, int type) Parameters: PgBndPolygon a, pointer on structure of bnd_curve PgBndPolygon b, pointer on structure of bnd_curve Returnvalue: int 0: paste didn't work 1: paste succeeded Description: paste two bnd's of a triang2d structure paste b at the end of a
boolean	bnd_shrink() Identify a boundary curve to a single point.
int	bndcmp(PgBndPolygon b, double maxDist) Parameters: PgBndPolygon a, pointer on structure of bnd_curve PgBndPolygon b, pointer on structure of bnd_curve Returnvalue: int 0: boundaries are not equal 1: bnd's are equal: a.m_vertexInd.m_data[i] = b.m_vertexInd.m_data[i] -1: bnd's are invers equal: a.m_vertexInd.m_data[i] = b.m_vertexInd.m_data[nop-1-i] Description: compare boundaries of one triang2d structure
static void	bndcp(int from, int to, int nedges, PgBndPolygon a, PgBndPolygon b) Parameters: int from, vertexno of beginning of source bnd_curve int to, vertexno of beginning of destination bnd_curve int nedges, number of edges to copy PgBndPolygon a, pointer on structure of source bnd_curve PgBndPolygon b, pointer on structure of destination bnd_curve Returnvalue: --- Description: copy part of bnd_curve number of edges = number of vertices - 1
static void	bndcpy(int from, int to, int nedges, PgBndPolygon a, PgBndPolygon b) Parameters: int from, vertexno of beginning of source bnd_curve int to, vertexno of beginning of destination bnd_curve int nedges, number of edges to copy PgBndPolygon a, pointer on structure of source bnd_curve PgBndPolygon b, pointer on structure of destination bnd_curve Returnvalue: --- Description: copy part of bnd_curve number of edges = number of vertices
static boolean	bndinv(int from, int to, int nedges, PgBndPolygon a, PgBndPolygon b) Parameters: int from, vertexno of beginning of source bnd_curve int to, vertexno of end of destination bnd_curve int nedges, number of edges to copy PgBndPolygon a, pointer on structure of source bnd_curve PgBndPolygon b, pointer on structure of destination bnd_curve Description: copy part of bnd_curve in reverse order
boolean	bndsh(int n) Parameters: int n, length of shift PgBndPolygon bnd, pointer on structure of bnd_curve Returnvalue: --- Description: shifts vertices and neighbours from beginning to end of bnd_curve
int	bndtst(double maxDist) Parameters: double maxDist tolerance to first bnd vertex Returnvalue: int 0: some bnd_curve points are equal 1: all bnd_curve points are equal -1: all bnd_curve points are different Description: tests whether bnd_curve is a single point
java.lang.Object	clone() Duplicate geometry by recursively cloning all instance variables except inspector panels and lists of registered listeners.
boolean	constrain() Project boundary vertices of element set onto curves determined by boundary constraints.
void	copy(PsObject object) Copies data from given boundary curve.
PgBndConstraint	getBndConstraint()
PiVector	getElementInd()
PgElementSet	getElementSet()
PiVector	getNeighbourLocInd()
int	getNumElements() Get number of elements adjacent to the boundary.
PiVector	getVertexInd()
void	init() Initialize and reset instance variables after call to super.init().
boolean	invert() Returnvalue: --- Description: invert bnd_curve to reverse order
boolean	isConforming() Return true if boundary belongs to conforming element set and boundary has been updated.
void	makeConforming() Modify vertex indices of a boundary after elementSet has been made conforming again.
boolean	makeElementInd() After the vertexInd have been assign, this method fills the elementInd vector by asking the triangulation for edges.
void	makeNonConforming() Modify vertex indices of a boundary after elementSet has been made non-conforming.
boolean	merge(PgBndPolygon b) Merge boundary polygon with current object into 'this' and identify last vertex of 'this' with first vertex of argument curve.
void	paint(PvGeometryIf dc) Major rendering method fills an internal container class supplied by the display.
void	setBndConstraint(PgBndConstraint bndConstraint)
void	setElementSet(PgElementSet aTriang)
java.lang.String	toString() Create a multi-line string representation with detailed information about all instance variables.

Methods inherited from class jv.geom.PgPolygon

assureEdgeColors, assureEdgeNormals, assureEdgeSizes, checkTriangleCut, computeCircle, computeEight, flipOrientation, getEdgeColors, getEdgeNormals, getEdges, getEdgeSizes, getFVector, getGlobalEdgeColor, getGlobalEdgeNormalColor, getGlobalEdgeNormalLength, getGlobalEdgeNormalSize, getGlobalEdgeSize, getGlobalEdgeTagColor, getGlobalPolygonColor, getGlobalPolygonSize, getGlobalPolygonTagColor, getJvx, getLength, getLengthOfEdge, getNumEdges, hasEdgeColors, hasEdgeNormals, intersectionWithLine, isClosed, isShowingEdgeColors, isShowingEdgeFromVertexColors, isShowingEdgeLabels, isShowingEdgeNormalArrow, isShowingEdgeNormals, isShowingEdges, isShowingEdgeSizes, isShowingPolygonColors, isShowingPolygonEndArrow, isShowingPolygonStartArrow, isShowingSmoothEdgeColors, isShowingSmoothLighting, makeBiNormals, makeCurvatureNormals, makeEdgeColorsFromLength, makeEdgeColorsFromXYZ, makeEdgeColorsFromZ, makeEdgeColorsFromZHue, makeEdgeFromVertexColors, makeNormals, makeNormals, makeOffsetNormals, makeVertexColorsFromLength, makeVertexFromEdgeColors, makeVertexNormals, removeEdgeColors, removeEdgeNormals, removeEdgeSizes, setClosed, setDimOfVertices, setEdgeColor, setEdgeColors, setEdgeNormal, setEdgeNormals, setEdgeSizes, setGlobalEdgeColor, setGlobalEdgeNormalColor, setGlobalEdgeNormalLength, setGlobalEdgeNormalSize, setGlobalEdgeSize, setGlobalEdgeTagColor, setGlobalPolygonColor, setGlobalPolygonSize, setGlobalPolygonTagColor, setJvx, setNumVertices, showEdgeColors, showEdgeFromVertexColors, showEdgeLabels, showEdgeNormalArrow, showEdgeNormals, showEdges, showEdgeSizes, showPolygonColors, showPolygonEndArrow, showPolygonStartArrow, showSmoothEdgeColors, showSmoothLighting, triangulate, update, useGlobalPolygonColor

Methods inherited from class jv.geom.PgPointSet

addVectorField, addVertex, applyAmbientMatrix, assureVertexColors, assureVertexNormals, assureVertexSizes, assureVertexTextures, clearTagVertex, computeCone, computeCylinder, computeDisk, computePlane, computeRotation, computeSnail, computeSphere, computeTorus, getAmbientBounds, getBounds, getCenterOfBndBox, getCenterOfGravity, getDimOfColors, getDimOfTextures, getDimOfVectors, getEulerCharacteristic, getGlobalVectorColor, getGlobalVectorLength, getGlobalVectorSize, getGlobalVertexColor, getGlobalVertexNormalColor, getGlobalVertexNormalLength, getGlobalVertexNormalSize, getGlobalVertexSize, getGlobalVertexTagColor, getIndexOfVectorField, getMarkedVertices, getMaxNumVertices, getNumVectorFields, getNumVertices, getSelectedVectorField, getShininess, getSpecularColor, getTexture, getTextureImage, getTextureImageName, getTransparency, getVectorField, getVectorField, getVertex, getVertexColor, getVertexColors, getVertexNormal, getVertexNormals, getVertexSize, getVertexSizes, getVertexTexture, getVertexTextures, getVertices, hasTagVertex, hasVertex, hasVertex, hasVertexColors, hasVertexNormals, hasVertexSizes, hasVertexTextures, isDefaultLabelEnabled, isEnabledIndexLabels, isShowingIndices, isShowingSingleVectorField, isShowingTaggedVertices, isShowingTransparency, isShowingVectorArrow, isShowingVectorArrows, isShowingVectorColors, isShowingVectorField, isShowingVectorFields, isShowingVertexColors, isShowingVertexLabels, isShowingVertexNormalArrow, isShowingVertexNormals, isShowingVertexOutline, isShowingVertexSizes, isShowingVertexTexture, isShowingVertices, makeColorFromVectorLength, makeQuadrVertexTexture, makeVertexColorsFromXYZ, makeVertexColorsFromZ, makeVertexColorsFromZHue, makeVertexTextureFromBndBox, makeVertexTextureFromCylinder, makeVertexTextureFromSphere, makeVertexTextureFromUV, merge, projectFromAmbientSpace, projectToSphere, reflect, removeAllVectorFields, removeHiddenVectorFields, removeMarkedVertices, removeTexture, removeVectorField, removeVertex, removeVertexColors, removeVertexNormals, removeVertexSizes, scale, scale, selectVectorField, setCenterOfBndBox, setDefaultLabelEnabled, setDimOfColors, setDimOfTextures, setDimOfVectors, setEnabledIndexLabels, setGlobalVectorColor, setGlobalVectorLength, setGlobalVectorSize, setGlobalVertexColor, setGlobalVertexNormalColor, setGlobalVertexNormalLength, setGlobalVertexNormalSize, setGlobalVertexSize, setGlobalVertexSize, setGlobalVertexTagColor, setShininess, setSpecularColor, setState, setTagVertex, setTexture, setTextureImage, setTextureImageName, setTransparency, setVertex, setVertex, setVertex, setVertex, setVertexColor, setVertexColors, setVertexNormal, setVertexNormals, setVertexSize, setVertexSizes, setVertexTexture, setVertexTextures, setVertices, showIndices, showSingleVectorField, showTaggedVertices, showTransparency, showVectorArrow, showVectorArrows, showVectorColors, showVectorField, showVectorFields, showVertexColors, showVertexLabels, showVertexNormalArrow, showVertexNormals, showVertexOutline, showVertexSizes, showVertexTexture, showVertices, translate

Methods inherited from class jv.project.PgGeometry

addDisplay, addElement, addPolygon, clearTagElement, clearTagPolygon, fillMethodMenu, fillMethodMenu, getAmbientInvMatrix, getAmbientMatrix, getAmbientProjection, getAmbientSpace, getAuthorInfo, getAuthors, getCenter, getCenterOfElement, getControlPanel, getDiameter, getDimOfSimplex, getDimOfVertices, getDisplayList, getDisplays, getElement, getGeometryInfo, getLabelAttribute, getLabelColor, getLabelFont, getLabelSize, getLabelStyle, getMaterialPanel, getModelMatrix, getPolygon, getState, getTitle, getType, getVersion, getVersionType, hasAmbientMatrix, hasDisplay, hasModelMatrix, hasTagElement, hasTagPolygon, isConfigurable, isEnabledInstanceSharing, isShowingBndBox, isShowingCenter, isShowingName, isShowingTitle, isVisible, removeDisplay, removeElement, removeMethodMenus, removePolygon, setAmbientMatrix, setAmbientProjection, setAmbientSpace, setAuthorInfo, setAuthors, setCenter, setDimOfSimplex, setElement, setEnabledInstanceSharing, setGeometryInfo, setLabelAttribute, setLabelAttribute, setLabelColor, setLabelFont, setLabelSize, setLabelStyle, setModelMatrix, setPolygon, setTagElement, setTagPolygon, setTitle, setType, setVersion, setVersionType, setVisible, showBndBox, showCenter, showName, showTitle

Methods inherited from class jv.object.PsObject

addInspector, addUpdateListener, assureInspector, clearTag, clone, clone, getFather, getInfoPanel, getInspector, getName, getNumObjects, getSymbol, hasInspector, hasTag, hasUpdateListener, instanceOf, instanceOf, newInspector, newInspector, removeInspector, removeInspector, removeUpdateListener, setName, setParent, setSymbol, setTag, updatePanels

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface jv.project.PgGeometryIf

assureInspector, getInfoPanel, getName, hasTag, setName

Methods inherited from interface jv.object.PsUpdateIf

getFather, setParent

Constructor Detail

PgBndPolygon

public PgBndPolygon(int aVertexDim)

Method Detail

init

public void init()

Description copied from class: PgPolygon

Initialize and reset instance variables after call to super.init().

Overrides:

init in class PgPolygon

clone

public java.lang.Object clone()

Duplicate geometry by recursively cloning all instance variables except inspector panels and lists of registered listeners. The parent relationship is maintained only within this class but not to external classes. In general, all links of the clone to external objects are set to null.

Link to associated element set is set to null.

Specified by:

clone in interface PgGeometryIf

Overrides:

clone in class PgPolygon

See Also:

copy(PsObject)

copy

public void copy(PsObject object)

Copies data from given boundary curve. Note: Reference to parent element set is not copied.

The argument was changed from PgGeometry to PsObject since there were problems in J/Link which preferred to use PsObject#copy(PsObject) instead of PgGeometry#copy(PsObject).

Overrides:

copy in class PgPolygon

See Also:

PgPolygon.clone()

toString

public java.lang.String toString()

Create a multi-line string representation with detailed information about all instance variables.

Specified by:

toString in interface PgGeometryIf

Overrides:

toString in class PgPolygon

applyModelingMatrix

public boolean applyModelingMatrix()

Multiply the modeling matrix to all vertices and vectors. The modeling matrix of this geometry is set to the identity matrix.

Overrides:

applyModelingMatrix in class PgPointSet

Returns:

true if operation was applied successfully.

Since:

JavaView 2.36

getNumElements

public int getNumElements()

Get number of elements adjacent to the boundary.

getElementSet

public PgElementSet getElementSet()

getVertexInd

public PiVector getVertexInd()

getElementInd

public PiVector getElementInd()

getNeighbourLocInd

public PiVector getNeighbourLocInd()

getBndConstraint

public PgBndConstraint getBndConstraint()

setBndConstraint

public void setBndConstraint(PgBndConstraint bndConstraint)

setElementSet

public void setElementSet(PgElementSet aTriang)

paint

public void paint(PvGeometryIf dc)

Description copied from class: PgPolygon

Major rendering method fills an internal container class supplied by the display. See jv.project.PgGeometryIf for detailed information.

Specified by:

paint in interface PgGeometryIf

Overrides:

paint in class PgPolygon

See Also:

PgGeometryIf

isConforming

public boolean isConforming()

Return true if boundary belongs to conforming element set and boundary has been updated.

makeNonConforming

public void makeNonConforming()

Modify vertex indices of a boundary after elementSet has been made non-conforming. Method assumes that boundary has been setup for a conforming element set before, and, additionally, that the element set is already non-conforming. Number of boundary vertices is reduced by one.

See Also:

PnConjugate.makeConforming(jv.geom.PgElementSet), PnConjugate.makeNonConforming(jv.geom.PgElementSet)

makeConforming

public void makeConforming()

Modify vertex indices of a boundary after elementSet has been made conforming again. Method assumes that boundary has been setup for a non-conforming element set before, and, additionally, that the element set is already conforming again. Number of boundary vertices is incremented by one.

See Also:

PnConjugate.makeConforming(jv.geom.PgElementSet), PnConjugate.makeNonConforming(jv.geom.PgElementSet)

assignVertices

public boolean assignVertices()

Update the vertices of the polygon. It should be called when vertices of the elementSet have changed. Method assumes that boundary has been setup for an element set before.

makeElementInd

public boolean makeElementInd()

After the vertexInd have been assign, this method fills the elementInd vector by asking the triangulation for edges. Additionally, the vertices are assigned. Method does not work for non-conforming element sets.

Returns:

false if missing element set or edge not found, else true.

bndsh

public boolean bndsh(int n)

Parameters: int n, length of shift PgBndPolygon bnd, pointer on structure of bnd_curve Returnvalue: --- Description: shifts vertices and neighbours from beginning to end of bnd_curve

bndinv

public static boolean bndinv(int from,
                             int to,
                             int nedges,
                             PgBndPolygon a,
                             PgBndPolygon b)

Parameters: int from, vertexno of beginning of source bnd_curve int to, vertexno of end of destination bnd_curve int nedges, number of edges to copy PgBndPolygon a, pointer on structure of source bnd_curve PgBndPolygon b, pointer on structure of destination bnd_curve Description: copy part of bnd_curve in reverse order

invert

public boolean invert()

Returnvalue: --- Description: invert bnd_curve to reverse order

bndcp

public static void bndcp(int from,
                         int to,
                         int nedges,
                         PgBndPolygon a,
                         PgBndPolygon b)

Parameters: int from, vertexno of beginning of source bnd_curve int to, vertexno of beginning of destination bnd_curve int nedges, number of edges to copy PgBndPolygon a, pointer on structure of source bnd_curve PgBndPolygon b, pointer on structure of destination bnd_curve Returnvalue: --- Description: copy part of bnd_curve number of edges = number of vertices - 1

bndcpy

public static void bndcpy(int from,
                          int to,
                          int nedges,
                          PgBndPolygon a,
                          PgBndPolygon b)

Parameters: int from, vertexno of beginning of source bnd_curve int to, vertexno of beginning of destination bnd_curve int nedges, number of edges to copy PgBndPolygon a, pointer on structure of source bnd_curve PgBndPolygon b, pointer on structure of destination bnd_curve Returnvalue: --- Description: copy part of bnd_curve number of edges = number of vertices

bndcmp

public int bndcmp(PgBndPolygon b,
                  double maxDist)

Parameters: PgBndPolygon a, pointer on structure of bnd_curve PgBndPolygon b, pointer on structure of bnd_curve Returnvalue: int 0: boundaries are not equal 1: bnd's are equal: a.m_vertexInd.m_data[i] = b.m_vertexInd.m_data[i] -1: bnd's are invers equal: a.m_vertexInd.m_data[i] = b.m_vertexInd.m_data[nop-1-i] Description: compare boundaries of one triang2d structure

bndtst

public int bndtst(double maxDist)

Parameters: double maxDist tolerance to first bnd vertex Returnvalue: int 0: some bnd_curve points are equal 1: all bnd_curve points are equal -1: all bnd_curve points are different Description: tests whether bnd_curve is a single point

bnd_shrink

public boolean bnd_shrink()

Identify a boundary curve to a single point. Method assumes that all referenced vertices are geometrically identically and replaces all vertex references with a reference to the first vertex in the boundary curve. Remaining vertices are marked PsObject#IS_DELETED. Boundary curve itself is marked deleted too. The boundary edges are removed from adjacent elements respectively elements with three edges are removed.

bnd_id

public boolean bnd_id(PgBndPolygon b,
                      int orient)

Parameters: PgBndPolygon a, pointer to structure of type bnd_curve PgBndPolygon b, pointer to structure of type bnd_curve int orient, orientation marker orient >=0 : bnd's are equal orient < 0 : bnd's are invers equal Returnvalue: --- Description: identify boundaries History: created: 29.12.97 Konrad Polthier

bnd_dist

public double bnd_dist(PgBndPolygon b)

Parameters: PgBndPolygon a, pointer to structure of bnd_curve PgBndPolygon b, pointer to structure of bnd_curve return: double dist distance of two boundaries int *orient 1: bnd's have same direction, i.e. a.m_vertexInd.m_data[i] = b.m_vertexInd.m_data[i] -1:bnd's have different directions, i.e. a.m_vertexInd.m_data[i] = b.m_vertexInd.m_data[nop-1-i] Returnvalue: 0 failure, orient and dist will not be defined on return; 1 success; Description: compare boundaries of one triang2d structure and return their distance, i.e. the maximal value of the minimal distance of boundary points

bnd_cmp_paste

public int bnd_cmp_paste(PgBndPolygon b,
                         double maxDist)

Parameters: PgBndPolygon a, pointer on structure of bnd_curve PgBndPolygon b, pointer on structure of bnd_curve Returnvalue: int 0: boundaries cannot be pasted, angle > MAX_PASTE_ANGLE (in degrees) 11: beginning of a and b may be pasted 12: beginning of a and end of b may be pasted 21: end of a and beginning of b may be pasted 22: end of a and b may be pasted Description: compare two bnd's of a triang2d structure w.r.t. pasting

bnd_paste

public boolean bnd_paste(PgBndPolygon b,
                         int type)

Parameters: PgBndPolygon a, pointer on structure of bnd_curve PgBndPolygon b, pointer on structure of bnd_curve Returnvalue: int 0: paste didn't work 1: paste succeeded Description: paste two bnd's of a triang2d structure paste b at the end of a

bnd_cmp_logic

public int bnd_cmp_logic(PgBndPolygon b,
                         double maxDist)

Parameters: PgBndPolygon a, pointer on structure of bnd_curve PgBndPolygon b, pointer on structure of bnd_curve Returnvalue: int 0: boundaries are not equal 1: bnd's are equal with m_vertexInd.m_data[0] = b.m_vertexInd.m_data[0] -1: bnd's are invers equal with m_vertexInd.m_data[0] = b.m_vertexInd.m_data[nop-1] Description: compare boundaries of one triang2d structure, they may have different number of vertices.

merge

public boolean merge(PgBndPolygon b)

Merge boundary polygon with current object into 'this' and identify last vertex of 'this' with first vertex of argument curve.

Parameters:

b - PgBndPolygon to be merged into 'this'

Returns:

true if merge was successfull

blend

public boolean blend(double s,
                     PgGeometry ag,
                     double t,
                     PgGeometry bg)

Blend between two polygon using this = s*a + t*b.

Specified by:

blend in interface PgGeometryIf

Overrides:

blend in class PgPolygon

Parameters:

s - weight of vertices of first boundary polygon

ag - first boundary polygon used for blending

t - weight of vertices of second boundary polygon

bg - second boundary polygon used for blending

Returns:

true on success

constrain

public boolean constrain()

Project boundary vertices of element set onto curves determined by boundary constraints. Then update vertices of boundary polygon too.