Update 'src/app/components/line-segment-component/models/line-segment-model.js'

Bug fixed: wasn't creating intersection point between line and circumference, when one point already exists.
Inside "getIntersectionWithCircumference(circumference)" in a code introduced in 2023/08/09 to avoid construct intersection point over a free point. Example: c0:=circ(A,B); r:=line(A,B); // point B is already an intersection between c0 and r
Fixed a single detail "PB = pointB;" instead "PA = pointB;"

src/app/components/line-segment-component/models/line-segment-model.js

@@ -96,6 +96,19 @@ export class LineSegmentModel extends GeometricObject {
       }
     }
 
+  //DEBUG print coordinates of point
+  pp (point) {
+    var px="",py="";
+    try { //D //leo
+      px=""+point.id+":"+point.posX; py=""+point.posY; var aux1="", aux2="";
+      var items = px.split("."); if (items && items.length>1) aux1 = "." + items[1].substr(0,3); px = items[0] + aux1; // pegar apenas 3 digitos
+      var items = py.split("."); if (items && items.length>1) aux2 = "." + items[1].substr(0,3); py = items[0] + aux2; // pegar apenas 3 digitos
+    } catch (e) {
+    console.log("line-segment-model.js!pp(.): erro! " + e); }
+    return "(" + px + "," + py + ")";
+    }
+    
+
   // Intersection with circunference
   // @calledby line-model.js!getIntersectionWithCircumference(circ): return super.getIntersectionWithCircumference(circ);
   getIntersectionWithCircumference (circumference) { //TODO Nome? Melhor 'getIntersectionWithCircumference'
@@ -112,7 +125,7 @@ export class LineSegmentModel extends GeometricObject {
       }
     else
     if (pointB.id==radiusP.id) {
-      console.log("*** line-segment-model.js!getIntersectionWithCircumference(.): pointA already in intersection!" + aux);
+      console.log("*** line-segment-model.js!getIntersectionWithCircumference(.): pointB already in intersection!" + aux);
       existB = 1; //pointB.og1 = this; pointB.og2 = circumference;
       }
     //D else console.log("xxx line-segment-model.js!getIntersectionWithCircumference(.): pointA or PointB NOT in intersection!" + aux);
@@ -131,13 +144,18 @@ export class LineSegmentModel extends GeometricObject {
     const delta = D * D - q;
 
     var PA, PB;
+    try {
     if (existA==-1) PA = new IntersectionModel(Number.MAX_SAFE_INTEGER, Number.MAX_SAFE_INTEGER, undefined, this, circumference, false, 0);
     else            PA = pointA; // intersection already exist (with point A)
     if (existB==-1) PB = new IntersectionModel(Number.MAX_SAFE_INTEGER, Number.MAX_SAFE_INTEGER, undefined, this, circumference, false, 1);
-    else            PA = pointB; // intersection already exist (with point B)
+    else            PB = pointB; // intersection already exist (with point B)
+    } catch (ex) { console.log("*** line-segment-model.js!getIntersectionWithCircumference(.): ERRO 1!"); console.trace(); }
 
     if (delta < 0) { //TODO Verificar? No intersection points
       //D console.log("line-segment-model.js: getIntersectionWithCircumference(.): delta<0: " + Number.MAX_SAFE_INTEGER);
+      // app/components/middle-point/drawers/middle-point-drawer.js : pp(point) - funcao para depuracao, imprimir coordenadas do ponto
+      //D console.log("*** line-segment-model.js!getIntersectionWithCircumference(.): delta<0, ponto A: [" + PA.id + " : " + this.pp(PA) + "]");
+      //D console.log("*** line-segment-model.js!getIntersectionWithCircumference(.): delta<0, ponto B: [" + (PB==undefined?"-1":PB.id) + " : " + this.pp(PB) + "]");
       return [PA, PB];
       }
 
@@ -147,22 +165,32 @@ export class LineSegmentModel extends GeometricObject {
     const x1 = pointA.posX - dx * root1
     const y1 = pointA.posY - dy * root1;
 
+    try {
     if (delta == 0) { //TODO Verificar? Only one point (actually, both with the same coordinates)
       //D console.log("line-segment-model.js: getIntersectionWithCircumference(.): delta==0");
       if (existA==-1)
         PA.bind(x1, y1, undefined, this, circumference, true, 0);
+      // app/components/middle-point/drawers/middle-point-drawer.js : pp(point) - funcao para depuracao, imprimir coordenadas do ponto
+      //D console.log("*** line-segment-model.js!getIntersectionWithCircumference(.): delta==0, ponto A: [" + PA.id + " : " + this.pp(PA) + "]");
+      //D console.log("*** line-segment-model.js!getIntersectionWithCircumference(.): delta==0, ponto B: [" + PB.id + " : " + this.pp(PB) + "]");
       return [PA, PB];
       }
+    } catch (ex) { console.log("*** line-segment-model.js!getIntersectionWithCircumference(.): ERRO 2!"); console.trace(); }
 
     const x2 = pointA.posX - dx * root2;
     const y2 = pointA.posY - dy * root2;
 
+    try {
     if (existA==-1) PA.bind(x1, y1, undefined, this, circumference, true, 0);
     if (existB==-1) PB.bind(x2, y2, undefined, this, circumference, true, 1);
-
     if (!this.insideSegment(PB.posX, PB.posY)) {
       if (existB==-1) PB.bind(Number.MAX_SAFE_INTEGER, Number.MAX_SAFE_INTEGER, undefined, this, circumference, false, 1);
       }
+    } catch (ex) { console.log("*** line-segment-model.js!getIntersectionWithCircumference(.): ERRO 2!"); console.trace(); }
+
+    // app/components/middle-point/drawers/middle-point-drawer.js : pp(point) - funcao para depuracao, imprimir coordenadas do ponto
+    //D console.log("*** line-segment-model.js!getIntersectionWithCircumference(.): final, ponto A: [" + PA.id + " : " + this.pp(PA) + "]");
+    //D console.log("*** line-segment-model.js!getIntersectionWithCircumference(.): final, ponto B: [" + PB.id + " : " + this.pp(PB) + "]");
 
     return [PA, PB];
     } // getIntersectionWithCircumference(circumference)