OA_BOOL API

OA_BOOL is an plug-in engine designed to provide boolean operations for the Open Access environment. The class and function descriptions are listed below:

acsBoolSettings();

~acsBoolSettings();

void acsClear();

The maximum number of vertices per boundary. Positive Integer value > 200

Reversal Mode, if set, performs a final boolean to reverse the output polarity. An integer: 0=no reversal and 1=reversal.

Controls how the corners of polygons (where the angle is less than 90) are dealt with during boolean and sizing operations. 1 = right angle, 2 = use three point smoothing, 3 = use five point smoothing

Controls how the polygons are output. 0 = no convex postprocessor, 1 = break polygons if needed so they are convex in X, 2 = break into convex pieces, 3 = break into trapezoids.

If turned "on" output polygons are sized up or down by the specified value (see acsSizingVal). There are two different sizing algorithms. For small sizings of Manhattan data the standard sizing is fast and correct. For large sizings or if data is non-manhattan incremental sizing will produce "better" results. 0 = no sizing, 1 = standard sizing, 2 = incremental sizing.

defines the amount of sizing. Positive increases the area of the polygon - negative decreases it. This is a double.

Output polygons can be smoothed by removing closely spaced vertices. The SmoothVal defines the smallest distance between vertices. If set to 0, no smoothing is performed. SmoothVal is double.

Slivers are "tiny" pieces of metal left over after a boolean operation, generally due to numerical noise. They can be identified and removed if the SliverVal is defined. SliverVal is a double. 0 = no removal. Positive > 0 values indicate size of sliver to remove.

acsOaLayerPurposePair(oaLayerNum l, oaPurposeNum p);

~acsOaLayerPurposePair();

oaLayerNum value (unsigned integer) This variable defines the operands’ layer number.

RoaPurposeNum value (unsigned integer)This variable defines the operand’s purpose number.

acsOaPolygon();

~acsOaPolygon();

an integer pointer. This variable defines the polygon's vertices. Note that the first and last vertex are the same.

Integer value. This variable defines the polygon operand’s number of vertices. Count must reflect the fact that the first/last vertex are the same. So a rectangle has a numVert = 5.

acsShapeQuery();

virtual ~acsShapeQuery();

void query(<arguments>);

void queryShape(oaShape* shape);

virtual int acsQueryShape
 (oaShape* shape, int ErrorCode, int StatusPercent) = 0;

void acsSetPreProcess(bool OnOff = true);

bool acsGetPreProcess();

void acsBoolSetPrimary
 (acsLayerPurposePair** InputSet, int NumLayers);

void acsBoolSetSecondary
 (acsLayerPurposePair** InputSet, int NumLayers);

void acsBoolSetSecondary
 ((acsPolygon** PolygonSet, int NumPolygons);

void acsBoolSetOperator(acsOperator Operation);

void acsBoolSetModifiers
 (const acsBoolSettings& Settings);

void acsBoolGetModifiers
 (acsBoolSettings& Settings);

static void acsBoolInit();

static void acsBoolClose();

void acsBoolClear();