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Annotation of pmsdk/samples/shapes/sstruct.h, revision 1.1.1.1

1.1       root        1: /*--------------------------------------------------------*\
                      2:     SSTRUCT.H - 3D shape data structures
                      3: \*--------------------------------------------------------*/
                      4: 
                      5: #define MAX_WINDOWS 8          /* max parent + child windows */
                      6: #define MAX_POINTS  100        /* max points per object */
                      7: #define MIN_SCALE   4          /* min scale multiplier */
                      8: 
                      9: /*
                     10:    3D "OBJECT" Data Structure:
                     11: 
                     12:    Each object consists of a table of 3D points, a list of lines, and/or
                     13:    a list of faces.  When clipping is off, the list of lines are used and when
                     14:    clipping is on, the list of faces are used to draw the shape.
                     15: 
                     16:    Each line consists of two points (indexes for the table of 3D points).
                     17:    A list of lines is terminated by the line {-1,-1}.
                     18: 
                     19:    Each face consists of a list of the points on the perimeter, and optional
                     20:    lists of points for patterns which appear on the face.  If the face is
                     21:    visible then the perimeter is drawn along with the optional patterns.
                     22:    The points for the perimeter of the face are specified in counter clockwise
                     23:    order as one views the shape from the outside.  Each pattern is a list of
                     24:    points which are to be connected by lines.
                     25:    The following values are used to terminate the lists:
                     26:        -1      end of perimeter or pattern
                     27:        -2      end of face (and end of perimeter or pattern)
                     28:        -3      end of object
                     29: */
                     30: 
                     31: typedef struct { INT x, y, z; } POINT3D;
                     32: typedef struct { INT x, y; } POINT2D;
                     33: typedef struct { INT p1, p2; } LINE;
                     34: typedef INT FACE;
                     35: 
                     36: typedef struct
                     37:     {
                     38:     INT cPoints;           /* number of 3D points */
                     39:     POINT3D *rgpt3;        /* array of points */
                     40:     LINE *rgline;          /* array of lines */
                     41:     FACE *rgface;          /* array of faces */
                     42:     }
                     43:     OBJECT;
                     44: 
                     45: typedef struct
                     46:     {
                     47:     LONG zViewDist;        /* viewing distance for perspective */
                     48:     POINT3D pt3Angle;      /* initial angle of rotation */
                     49:     POINT3D pt3AngVel;     /* angular velocity for rotation */
                     50:     POINT3D pt3SizeMid;     /* initial size */
                     51:     POINT3D pt3SizeMag;     /* magnitude of sinusoidal size change */
                     52:     POINT3D pt3SizeAng;     /* initial angle for sinusoidal size change */
                     53:     POINT3D pt3SizeVel;     /* angular velocity of sinusoidal size change */
                     54:     }
                     55:     INIT;
                     56: 
                     57: typedef struct
                     58:     {
                     59:     CHAR *szName;          /* name of shape */
                     60:     OBJECT *pobject;       /* object definition */
                     61:     INIT *pinit;           /* initial parameters */
                     62:     }
                     63:     SHAPE;
                     64: 
                     65: 
                     66: /*
                     67:    Each window (child or parent) has an associated SHAPEVARS structure.
                     68:    In essence, these variables are local to the window.
                     69: */
                     70: 
                     71: typedef struct
                     72:     {
                     73:     INT iShape;            /* shape index */
                     74:     HWND hwndFrame;        /* Frame hwnd */
                     75:     HWND hwndClient;       /* Client hwnd */
                     76:     HPS hpsClient;         /* Client hps */
                     77:     POINTL *rgptOld;       /* previously drawn 2D points */
                     78:     POINTL *rgptNew;       /* next to be drawn 2D points */
                     79:     BOOL fShaded;          /* shaded flag */
                     80:     BOOL fErased;          /* window erased flag */
                     81:     BOOL fClipping;        /* clipping flag */
                     82:     BOOL fVarySize;        /* vary size flag */
                     83:     BOOL fPerspective;     /* perspective flag */
                     84:     POINTL ptCentre;       /* centre point in window */
                     85:     LONG zViewDist;        /* viewing distance (perspective) */
                     86:     POINT2D pt2LightAng;    /* light source angle (x/y rotations) */
                     87:     POINT3D pt3Angle;      /* shape's current angle of rotation */
                     88:     POINT3D pt3AngVel;     /* shape's angular velocity of rotation */
                     89:     POINT3D pt3Size;       /* current size */
                     90:     POINT3D pt3SizeMid;     /* middle size of sinusoidal size change */
                     91:     POINT3D pt3SizeMag;     /* magnitude of sinusoidal size change */
                     92:     POINT3D pt3SizeAng;     /* current angle for sinusoidal size change */
                     93:     }
                     94:     SHAPEVARS;
                     95: 
                     96: typedef SHAPEVARS *PSV;

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