<li>tangent to the previous segment;</li>
<li>vector components DX, DY.</li>
</ul>
-<li>Parameters of an element (for segment : length or target X or Y coordinate value, for arc : radius and angle).</li>
+<li>Parameters of an element (for segment : length or target X or Y coordinate value, for arc : radius, angle or center coordinates).</li>
</ol>
\b Buttons:
<message>
<source>GEOM_SKETCHER_ABS</source>
<translation>Absolute</translation>
+ </message>
+ <message>
+ <source>GEOM_SKETCHER_ADD_PARAMS</source>
+ <translation>Additionnal Parameters</translation>
</message>
<message>
<source>GEOM_SKETCHER_ANGLE</source>
<message>
<source>GEOM_SKETCHER_ARC</source>
<translation>Arc</translation>
- </message>
+ </message>
<message>
+ <source>GEOM_SKETCHER_CENTER</source>
+ <translation>Center</translation>
+ </message>
+ <message>
+ <source>GEOM_SKETCHER_CENTER2</source>
+ <translation>Center :</translation>
+ </message>
+ <message>
+ <source>GEOM_SKETCHER_CENTER_X</source>
+ <translation>Center X coord. :</translation>
+ </message>
+ <message>
+ <source>GEOM_SKETCHER_CENTER_Y</source>
+ <translation>Center Y coord. :</translation>
+ </message>
+ <message>
+ <source>GEOM_SKETCHER_CENTER_DX</source>
+ <translation>Center DX coord. :</translation>
+ </message>
+ <message>
+ <source>GEOM_SKETCHER_CENTER_DY</source>
+ <translation>Center DY coord. :</translation>
+ </message>
+ <message>
<source>GEOM_SKETCHER_DEST</source>
<translation>Destination</translation>
</message>
<message>
<source>GEOM_SKETCHER_LENGTH2</source>
<translation>Length :</translation>
+ </message>
+ <message>
+ <source>GEOM_SKETCHER_NONE</source>
+ <translation>None (Tangential)</translation>
</message>
<message>
<source>GEOM_SKETCHER_PER</source>
<message>
<source>GEOM_SKETCHER_POINT2</source>
<translation>Point :</translation>
- </message>
+ </message>
+ <message>
+ <source>GEOM_SKETCHER_END_POINT2</source>
+ <translation>End Point :</translation>
+ </message>
+ <message>
+ <source>GEOM_SKETCHER_RADIUS</source>
+ <translation>Radius</translation>
+ </message>
<message>
<source>GEOM_SKETCHER_RADIUS2</source>
<translation>Radius :</translation>
<message>
<source>GEOM_SKETCHER_POINT2</source>
<translation>Point :</translation>
+ </message>
+ <message>
+ <source>GEOM_SKETCHER_END_POINT2</source>
+ <translation>End Point :</translation>
</message>
<message>
<source>GEOM_SKETCHER_RADIUS2</source>
#"C radius length" : Create by direction, radius and length(in degree)
#"AA x y": Create by point at X & Y
#"A dx dy" : Create by point with DX & DY
+#"UU x y radius flag1": Create by point at X & Y with given radiUs
+#"U dx dy radius flag1" : Create by point with DX & DY with given radiUs
+#"EE x y xc yc flag1 flag2": Create by point at X & Y with given cEnter
+#"E dx dy dxc dyc radius flag1 flag2" : Create by point with DX & DY with given cEnter
+
+#Flag1 is 0 or 2 ...
+# if 0 the drawn arc is the one of lower angle (< Pi)
+# if 2 the drawn arc ius the one of greater angle (> Pi)
+
+#Flag2 is 0 or 1 ...
+# if 0 the specified end point can be at a distance of the arc greater than the tolerance (10^-7)
+# if 1 the wire is built only if the end point is on the arc
+# with a tolerance of 10^-7 on the distance else the creation fails
#To finish
#"WW" : Close Wire
# - "C radius length" : Create arc by direction, radius and length(in degree)
# - "AA x y": Create arc by point at X & Y
# - "A dx dy" : Create arc by point with DX & DY
- # .
+ # - "A dx dy" : Create arc by point with DX & DY
+ # - "UU x y radius flag1": Create arc by point at X & Y with given radiUs
+ # - "U dx dy radius flag1" : Create arc by point with DX & DY with given radiUs
+ # - "EE x y xc yc flag1 flag2": Create arc by point at X & Y with given cEnter coordinates
+ # - "E dx dy dxc dyc radius flag1 flag2" : Create arc by point with DX & DY with given cEnter coordinates
+ # .
# \n
# - "WW" : Close Wire (to finish)
# - "WF" : Close Wire and build face (to finish)
- #
+ # .
+ # \n
+ # - Flag1 (= reverse) is 0 or 2 ...
+ # - if 0 the drawn arc is the one of lower angle (< Pi)
+ # - if 2 the drawn arc ius the one of greater angle (> Pi)
+ # .
+ # \n
+ # - Flag2 (= control tolerance) is 0 or 1 ...
+ # - if 0 the specified end point can be at a distance of the arc greater than the tolerance (10^-7)
+ # - if 1 the wire is built only if the end point is on the arc
+ # with a tolerance of 10^-7 on the distance else the creation fails
+ #
# @param theCommand String, defining the sketcher in local
# coordinates of the working plane.
# @param theWorkingPlane Nine double values, defining origin,
//=======================================================================
Sketcher_Profile::Sketcher_Profile(const char* aCmd)
{
+ myErrMsg = "";
enum {line, circle, point, none} move;
Standard_Integer i = 1;
first = Standard_True;
stayfirst = face = close = Standard_False;
+ Standard_Integer reversed = 0;
+ Standard_Integer control_Tolerance = 0;
+
TopoDS_Shape S;
TopoDS_Vertex MP;
BRepBuilderAPI_MakeWire MW;
}
case 'T':
{
- if (n1 != 3) goto badargs;
+ if (n1 != 3) goto badargs;
Standard_Real vx = a(1).RealValue();
Standard_Real vy = a(2).RealValue();
if (a(0) == "TT") {
move = none;
break;
}
- case 'A':
+ case 'A': // TAngential arc by end point
{
if (n1 != 3) goto badargs;
Standard_Real vx = a(1).RealValue();
vx -= x;
vy -= y;
}
- Standard_Real det = (dx * vy - dy * vx);
+ Standard_Real det = dx * vy - dy * vx;
if ( Abs(det) > Precision::Confusion()) {
- Standard_Real c = (dx * vx + dy * vy) // Cosine of alpha = arc angle / 2
- / Sqrt((dx * dx + dy * dy)
- * (vx * vx + vy * vy));
- radius = (vx * vx + vy * vy) // radius = distance between start
- * Sqrt(dx * dx + dy * dy) // and end point / 2 * sin(alpha)
- / (2.0 * det); // radius is > 0 or < 0
+ Standard_Real c = (dx * vx + dy * vy)
+ / Sqrt((dx * dx + dy * dy) * (vx * vx + vy * vy)); // Cosine of alpha = arc of angle / 2 , alpha in [0,Pi]
+ radius = (vx * vx + vy * vy)* Sqrt(dx * dx + dy * dy) // radius = distance between start and end point / 2 * sin(alpha)
+ / (2.0 * det); // radius is > 0 or < 0
if (Abs(radius) > Precision::Confusion()) {
- angle = 2.0 * acos(c); // angle in [0,Pi]
+ angle = 2.0 * acos(c); // angle in [0,2Pi]
move = circle;
}
else
move = none;
break;
}
+ case 'U': // Arc by end point and radiUs
+ {
+ if (n1 != 5) goto badargs;
+ Standard_Real vx = a(1).RealValue();
+ Standard_Real vy = a(2).RealValue();
+ radius = a(3).RealValue();
+ reversed = a(4).IntegerValue();
+ if (a(0) == "UU") { // Absolute
+ vx -= x;
+ vy -= y;
+ }
+ Standard_Real length = Sqrt(vx * vx + vy * vy);
+ if ( (4.0 - (vx * vx + vy * vy) / (radius * radius) >= 0.0 ) && (length > Precision::Confusion()) ) {
+ Standard_Real c = 0.5 * Sqrt(4.0 - (vx * vx + vy * vy) / (radius * radius)); // Cosine of alpha = arc angle / 2 , alpha in [0,Pi/2]
+ angle = 2.0 * acos(c); // angle in [0,Pi]
+ if ( reversed == 2 )
+ angle = angle - 2 * PI;
+ dx = 0.5 * ( vy * 1.0/radius
+ + vx * Sqrt(4.0 / (vx * vx + vy * vy) - 1.0 / (radius * radius)));
+ dy = - 0.5 * ( vx * 1.0/radius
+ - vy * Sqrt(4.0 / (vx * vx + vy * vy) - 1.0 / (radius * radius)));
+ move = circle;
+ }
+ else{
+ move = none;
+ }
+ break;
+ }
+ case 'E': // Arc by end point and cEnter
+ {
+ myErrMsg = "";
+ if (n1 != 7) goto badargs;
+ Standard_Real vx = a(1).RealValue();
+ Standard_Real vy = a(2).RealValue();
+ Standard_Real vxc = a(3).RealValue();
+ Standard_Real vyc = a(4).RealValue();
+ reversed = a(5).IntegerValue();
+ control_Tolerance = a(6).IntegerValue();
+
+ if (a(0) == "EE") { // Absolute
+ vx -= x;
+ vy -= y;
+ vxc -= x;
+ vyc -= y;
+ }
+ radius = Sqrt( vxc * vxc + vyc * vyc );
+ Standard_Real det = vx * vyc - vy * vxc;
+ Standard_Real length = Sqrt(vx * vx + vy * vy);
+ Standard_Real length2 = Sqrt((vx-vxc) * (vx-vxc) + (vy-vyc) * (vy-vyc));
+ Standard_Real length3 = Sqrt(vxc * vxc + vyc * vyc);
+ Standard_Real error = Abs(length2 - radius);
+ if ( error > Precision::Confusion() ){
+ MESSAGE("Warning : The specified end point is not on the Arc, distance = "<<error);
+ myErrMsg = "Warning : The specified End Point is not on the Arc";
+ }
+ if ( error > Precision::Confusion() && // Don't create the arc if the end point
+ control_Tolerance == 1) // is too far from it
+ move = none;
+ else if ( (length > Precision::Confusion()) &&
+ (length2 > Precision::Confusion()) &&
+ (length3 > Precision::Confusion()) ) {
+ Standard_Real c = ( radius * radius - (vx * vxc + vy * vyc) )
+ / ( radius * Sqrt((vx-vxc) * (vx-vxc) + (vy-vyc) * (vy-vyc)) ) ; // Cosine of arc angle
+ angle = acos(c); // angle in [0,Pi]
+ if ( reversed == 2 )
+ angle = angle - 2 * PI;
+ if (det < 0)
+ angle = -angle;
+ dx = vyc / radius;
+ dy = -vxc / radius;
+ move = circle;
+ }
+ else {
+ move = none;
+ }
+ break;
+ }
case 'I':
{
if (n1 != 2) goto badargs;
#include <gp_Pnt.hxx>
#include <gp_Dir.hxx>
#include <TopoDS_Shape.hxx>
+#include <string>
class Sketcher_Profile
{
TopoDS_Shape myShape;
bool myOK;
+ std::string myErrMsg;
public:
Standard_EXPORT gp_Pnt GetLastPoint(){return myLastPoint;};
Standard_EXPORT const TopoDS_Shape& GetShape(){return myShape;};
Standard_EXPORT bool IsDone(){return myOK;};
+ Standard_EXPORT std::string ErrMsg(){return myErrMsg;};
};
