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Class com.hermetica.gle.CoreGLE 
java.lang.Object
   |
   +----com.hermetica.gle.CoreGLE

  Summary 

public class  CoreGLE
     extends java.lang.Object
     implements com.hermetica.gle.GLE
{
          // Fields 1
     public static final String VERSION;

          // Constructors 1
     public CoreGLE();

          // Methods 13
     public void gleExtrusion(int, double[][], double[][], double[], int, double[][], float[][]) throws GLEException;
     public int gleGetJoinStyle();
     public void gleHelicoid(double, double, double, double, double, double[][], double[][], double, double) throws GLEException;
     public void gleLathe(int, double[][], double[][], double[], double, double, double, double, double[][], double[][], double, double) throws GLEException;
     public void glePolyCone(int, double[][], float[][], double[]) throws GLEException;
     public void glePolyCylinder(int, double[][], float[][], double) throws GLEException;
     public void gleScrew(int, double[][], double[][], double[], double, double, double) throws GLEException;
     public void gleSetJoinStyle(int);
     public void gleSpiral(int, double[][], double[][], double[], double, double, double, double, double[][], double[][], double, double) throws GLEException;
     public void gleSuperExtrusion(int, double[][], double[][], double[], int, double[][], float[][], double[][][]) throws GLEException;
     public void gleTextureMode(int);
     public void gleToroid(double, double, double, double, double, double[][], double[][], double, double) throws GLEException;
     public void gleTwistExtrusion(int, double[][], double[][], double[], int, double[][], float[][], double[]) throws GLEException;
}

Implementation of the routines exposed by the GLE library. The methods in this class interface with the GLE library perform the execution of the underlying extrusion code.

Version:
$Id: CoreGLE.java,v 1.5 1998/05/20 00:19:43 descarte Exp descarte $
Author:
Alligator Descartes <http://www.arcana.co.uk>




  Fields

• VERSION

 Summary  |  Top 

   public static final String VERSION

Version information


  Constructors

• CoreGLE

Summary  |  Top 

   public CoreGLE()

Constructor



  Methods

• gleGetJoinStyle

Summary  |  Top 
   public int gleGetJoinStyle()

Returns the current join style for connected extruded segments

Implements:
gleGetJoinStyle in interface GLE


• gleSetJoinStyle

Summary  |  Top 
   public void gleSetJoinStyle(int style)

Sets the current join style for connected extruded segments.

Parameter Description
style The new join style

Implements:
gleSetJoinStyle in interface GLE


• gleTextureMode

Summary  |  Top 
   public void gleTextureMode(int mode)

Sets the current texture coordinate generation mode

Parameter Description
mode Bitwise OR of texture flags

Implements:
gleTextureMode in interface GLE


• glePolyCylinder

Summary  |  Top 
   public void glePolyCylinder(int npoints, 
                               double[][] pointArray, 
                               float[][] colourArray, 
                               double radius)  throws GLEException

Draws a polycylinder, specified as a polyline

Parameter Description
npoints The number of points in the polyline
pointArray An array of points specified as ( x, y, z )
colourArray An array of colors at each polyline vertex specified as RGB
radius The radius of the polycylinder

Implements:
glePolyCylinder in interface GLE


• glePolyCone

Summary  |  Top 
   public void glePolyCone(int npoints, 
                           double[][] pointArray, 
                           float[][] colourArray, 
                           double[] radiusArray)  throws GLEException

Draws a polycone specified as a polyline with radii

Parameter Description
npoints The number of points in the polyline
pointArray An array of points specified as ( x, y, z )
colourArray An array of colours at each polyline vertex specified as RGB
radiusArray An array containing the radii of the cone at each polyline vertex

Implements:
glePolyCone in interface GLE


• gleExtrusion

Summary  |  Top 
   public void gleExtrusion(int ncp, 
                            double[][] contour, 
                            double[][] contourNormal, 
                            double[] up, 
                            int npoints, 
                            double[][] pointArray, 
                            float[][] colourArray)  throws GLEException

Extrudes an arbitrary 2D contour along an arbitrary 3D path.

Parameter Description
ncp The number of contour points
contour An array containing the points forming the 2D contour specified as ( x, y )
contourNormal An array containing the normals for each contour point
up The up vector for the contour
npoints The number of points in the 3D polyline
pointArray An array containing the vertices for the 3D polyline specified as ( x, y, z )
colourArray An array containing the colours at each polyline vertex specified as RGB

Implements:
gleExtrusion in interface GLE


• gleTwistExtrusion

Summary  |  Top 
   public void gleTwistExtrusion(int ncp, 
                                 double[][] contour, 
                                 double[][] contourNormal, 
                                 double[] up, 
                                 int npoints, 
                                 double[][] pointArray, 
                                 float[][] colourArray, 
                                 double[] twistArray)  throws GLEException

Extrudes an arbitrary 2D contour along a 3D path specifying local rotations ( twists ) as the contour is extruded.

Parameter Description
ncp The number of contour points
contour An array containing the points forming the 2D contour specified as ( x, y )
contourNormal An array containing the normals for each contour point
up The up vector for the contour
npoints The number of points in the 3D polyline
pointArray An array containing the vertices for the 3D polyline specified as ( x, y, z )
colourArray An array containing the colours at each polyline vertex specified as RGB
twistArray An array containing the twists to be applied at each contour point ( in degrees )

Implements:
gleTwistExtrusion in interface GLE


• gleSuperExtrusion

Summary  |  Top 
   public void gleSuperExtrusion(int ncp, 
                                 double[][] contour, 
                                 double[][] contourNormal, 
                                 double[] up, 
                                 int npoints, 
                                 double[][] pointArray, 
                                 float[][] colourArray, 
                                 double[][][] xformArray)  throws GLEException

Extrudes an arbitrary 2D contour along a 3D path specifying local affine transformations as the contour is extruded.

Parameter Description
ncp The number of contour points
contour An array containing the points forming the 2D contour specified as ( x, y )
contourNormal An array containing the normals for each contour point
up The up vector for the contour
npoints The number of points in the 3D polyline
pointArray An array containing the vertices for the 3D polyline specified as ( x, y, z )
colourArray An array containing the colours at each polyline vertex specified as RGB
xformArray An array containing the affine transformations to be applied at each contour point ( in degrees )

Implements:
gleSuperExtrusion in interface GLE


• gleSpiral

Summary  |  Top 
   public void gleSpiral(int ncp, 
                         double[][] contour, 
                         double[][] contourNormal, 
                         double[] up, 
                         double startRadius, 
                         double drdTheta, 
                         double startZ, 
                         double dzdTheta, 
                         double[][] startTransform, 
                         double[][] dTransformdTheta, 
                         double startTheta, 
                         double sweepTheta)  throws GLEException

Sweep an arbitrary contour along a helical path.

Parameter Description
ncp The number of contour points
contour An array containing the points forming the 2D contour specified as ( x, y )
contourNormal An array containing the normals for each contour point
up The up vector for the contour
startRadius The spiral starts in XY plane
drdTheta The change in radius per revolution
startZ The starting Z value
dzdTheta The change in Z per revolution
startTransform The starting contour affine transformation
dTransformdTheta The tangent change transformation per revolution
startTheta The start angle in XY plane
sweepTheta The number of degrees to spiral around

Implements:
gleSpiral in interface GLE


• gleLathe

Summary  |  Top 
   public void gleLathe(int ncp, 
                        double[][] contour, 
                        double[][] contourNormal, 
                        double[] up, 
                        double startRadius, 
                        double drdTheta, 
                        double startZ, 
                        double dzdTheta, 
                        double[][] startTransform, 
                        double[][] dTransformdTheta, 
                        double startTheta, 
                        double sweepTheta)  throws GLEException

Sweep an arbitrary contour along a helical path. The sweep will be performed as a shear along the z-axis so that the orientation of the contour is displaced, rather than translated, as the contour is swept.

Parameter Description
ncp The number of contour points
contour An array containing the points forming the 2D contour specified as ( x, y )
contourNormal An array containing the normals for each contour point
up The up vector for the contour
startRadius The spiral starts in XY plane
drdTheta The change in radius per revolution
startZ The starting Z value
dzdTheta The change in Z per revolution
startTransform The starting contour affine transformation
dTransformdTheta The tangent change transformation per revolution
startTheta The start angle in XY plane
sweepTheta The number of degrees to spiral around

Implements:
gleLathe in interface GLE


• gleHelicoid

Summary  |  Top 
   public void gleHelicoid(double rToroid, 
                           double startRadius, 
                           double drdTheta, 
                           double startZ, 
                           double dzdTheta, 
                           double[][] startTransform, 
                           double[][] dTransformdTheta, 
                           double startTheta, 
                           double sweepTheta)  throws GLEException

Generalized Torus. Similar to gleSpiral() except contour is a circle. Uses gleSpiral() to draw.

Parameter Description
rToroid The circle contour radius
startRadius The spiral starts in XY plane
drdTheta The change in radius per revolution
startZ The starting Z value
dzdTheta The change in Z per revolution
startTransform The starting contour affine transformation
dTransformdTheta The tangent change transformation per revolution
startTheta The start angle in XY plane
sweepTheta The number of degrees to spiral around

Implements:
gleHelicoid in interface GLE

See Also: gleSpiral



• gleToroid

Summary  |  Top 
   public void gleToroid(double rToroid, 
                         double startRadius, 
                         double drdTheta, 
                         double startZ, 
                         double dzdTheta, 
                         double[][] startTransform, 
                         double[][] dTransformdTheta, 
                         double startTheta, 
                         double sweepTheta)  throws GLEException

Generalized Torus. Similar to gleLathe() except contour is a circle. Uses gleLathe() to draw.

Parameter Description
rToroid The circle contour radius
startRadius The spiral starts in XY plane
drdTheta The change in radius per revolution
startZ The starting Z value
dzdTheta The change in Z per revolution
startTransform The starting contour affine transformation
dTransformdTheta The tangent change transformation per revolution
startTheta The start angle in XY plane
sweepTheta The number of degrees to spiral around

Implements:
gleToroid in interface GLE

See Also: gleSpiral



• gleScrew

Summary  |  Top 
   public void gleScrew(int ncp, 
                        double[][] contour, 
                        double[][] contourNormal, 
                        double[] up, 
                        double startz, 
                        double endz, 
                        double twist)  throws GLEException

Draws screw-type shapes. Takes a contour and extrudes it along the z-axis from a start z-value of startz to and end z-value of endz. During the extrusion, it will spin the contour along the contour origin by twist degrees.

Parameter Description
ncp The number of contour points
contour An array containing the vertex data for the 2D contour specified as ( x, y )
contourNormal An array containing the normal data for the 2D contour
up The up vector for the contour
startz The start z-value for the segment
endz The end z-value for the segment
twist The number of rotations to be applied to the contour

Implements:
gleScrew in interface GLE 

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