[Indigo]<Solidviews>Solidviews>SVGravity.mesa!11

SVGravity.mesa

Last edited by Bier on February 17, 1987 11:19:15 pm PST

Contents: Routines to snap the skitter to faces, segments, and points in the scene.

DIRECTORY

SV2d, SV3d, SVInterfaceTypes, SVSceneTypes, SVStoragePools;

SVGravity: CEDAR DEFINITIONS =

BEGIN

AlignBag: TYPE = SVInterfaceTypes.AlignBag;

Slice: TYPE = SVSceneTypes.Slice;

Point2d: TYPE = SV2d.Point2d;

Point3d: TYPE = SV3d.Point3d;

Camera: TYPE = SVSceneTypes.Camera;

CSGTree: TYPE = SVSceneTypes.CSGTree;

FeatureData: TYPE = SVInterfaceTypes.FeatureData;

GravityType: TYPE = SVInterfaceTypes.GravityType;

Scene: TYPE = SVSceneTypes.Scene;

SearchDepth: TYPE = SVSceneTypes.SearchDepth;

StoragePool: TYPE = SVStoragePools.StoragePool;

TriggerBag: TYPE = SVInterfaceTypes.TriggerBag;

Vector3d: TYPE = SV3d.Vector3d;

SVData: TYPE = SVInterfaceTypes.SVData;

NearFeatures: TYPE = REF NearFeaturesObj;

NearFeaturesObj: TYPE = RECORD [

features: SEQUENCE len: NAT OF FeatureData

];

NearPoints: TYPE = REF NearPointsObj;

NearPointsObj: TYPE = RECORD [

points: SEQUENCE len: NAT OF Point3d

];

NearDistances: TYPE = REF NearDistancesObj;

NearDistancesObj: TYPE = RECORD [

distances: SEQUENCE len: NAT OF REAL

];

GoodPoint: TYPE = SVInterfaceTypes.GoodPoint;

NearVertexEdgeAndFaces: TYPE = SVInterfaceTypes.NearVertexEdgeAndFaces;

FeatureCycler: TYPE = SVInterfaceTypes.FeatureCycler;

RayMap: PROC [cameraPt: Point2d, t: REAL, alignBag: AlignBag, sceneBag: TriggerBag, svData: SVData, intersections: BOOL ← FALSE] RETURNS [surfacePtWorld: Point3d, normalWorld: Vector3d, feature: FeatureData, hitData: REF ANY];

PointsPreferred: PROC [cameraPt: Point2d, t: REAL, alignBag: AlignBag, sceneBag: TriggerBag, svData: SVData, intersections: BOOL] RETURNS [surfacePtWorld: Point3d, normalWorld: Vector3d, feature: FeatureData, hitData: REF ANY];

LinesPreferred: PROC [cameraPt: Point2d, t: REAL, alignBag: AlignBag, sceneBag: TriggerBag, svData: SVData, intersections: BOOL] RETURNS [surfacePtWorld: Point3d, normalWorld: Vector3d, feature: FeatureData, hitData: REF ANY];

FacesPreferred: PROC [cameraPt: Point2d, t: REAL, alignBag: AlignBag, sceneBag: TriggerBag, svData: SVData] RETURNS [surfacePtWorld: Point3d, normalWorld: Vector3d, feature: FeatureData, hitData: REF ANY];

RayMapCycler: PROC [cameraPt: Point2d, t: REAL, alignBag: AlignBag, sceneBag: TriggerBag, svData: SVData, intersections: BOOL ← FALSE] RETURNS [featureCycler: FeatureCycler];

PointsPreferredCycler: PROC [cameraPt: Point2d, t: REAL, alignBag: AlignBag, sceneBag: TriggerBag, svData: SVData, intersections: BOOL, maxDimension: [0..2] ← 2] RETURNS [featureCycler: FeatureCycler];

LinesPreferredCycler: PROC [cameraPt: Point2d, t: REAL, alignBag: AlignBag, sceneBag: TriggerBag, svData: SVData, intersections: BOOL, maxDimension: [0..2] ← 2] RETURNS [featureCycler: FeatureCycler];

FacesPreferredCycler: PROC [cameraPt: Point2d, t: REAL, alignBag: AlignBag, sceneBag: TriggerBag, svData: SVData] RETURNS [featureCycler: FeatureCycler];

FirstFeature: PROC [featureCycler: FeatureCycler] RETURNS [surfacePtWorld: Point3d, normalWorld: Vector3d, feature: FeatureData, hitData: REF ANY];

NextFeature: PROC [featureCycler: FeatureCycler] RETURNS [surfacePtWorld: Point3d, normalWorld: Vector3d, feature: FeatureData, hitData: REF ANY];

PreviousFeature: PROC [featureCycler: FeatureCycler] RETURNS [surfacePtWorld: Point3d, normalWorld: Vector3d, feature: FeatureData, hitData: REF ANY];

NewGravityPool: PROC [] RETURNS [gravityPool: REF ANY];

END.