Examples of FlatteningPathIterator

Examples of java.awt.geom.FlatteningPathIterator

65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
    public Shape createStrokedShape(Shape shape) {
        FontRenderContext frc = new FontRenderContext(null, true, true);
        GlyphVector glyphVector = font.createGlyphVector(frc, text);

        GeneralPath result = new GeneralPath();
        PathIterator it = new FlatteningPathIterator(shape.getPathIterator(null), FLATNESS);
        float points[] = new float[6];
        float moveX = 0, moveY = 0;
        float lastX = 0, lastY = 0;
        float thisX = 0, thisY = 0;
        int type = 0;
        float next = 0;
        int currentChar = 0;
        int length = glyphVector.getNumGlyphs();

        if (length == 0)
            return result;

        float factor = stretchToFit ? measurePathLength(shape)
                / (float) glyphVector.getLogicalBounds().getWidth() : 1.0f;
        float height = (float) glyphVector.getLogicalBounds().getHeight();
        float nextAdvance = 0;

        while (currentChar < length && !it.isDone()) {
            type = it.currentSegment(points);
            switch (type) {
            case PathIterator.SEG_MOVETO:
                moveX = lastX = points[0];
                moveY = lastY = points[1];
                result.moveTo(moveX, moveY);
                nextAdvance = glyphVector.getGlyphMetrics(currentChar).getAdvance() * 0.5f;
                next = nextAdvance;
                break;

            case PathIterator.SEG_CLOSE:
                points[0] = moveX;
                points[1] = moveY;
                // Fall into....

            case PathIterator.SEG_LINETO:
                thisX = points[0];
                thisY = points[1];
                float dx = thisX - lastX;
                float dy = thisY - lastY;
                float distance = (float) FastMath.sqrt(dx * dx + dy * dy);
                if (distance >= next) {
                    float r = 1.0f / distance;
                    float angle = (float) FastMath.atan2(dy, dx);
                    while (currentChar < length && distance >= next) {
                        Shape glyph = glyphVector.getGlyphOutline(currentChar);
                        Point2D p = glyphVector.getGlyphPosition(currentChar);
                        float px = (float) p.getX();
                        float py = (float) p.getY();
                        float x = lastX + next * dx * r;
                        float y = lastY + next * dy * r;
                        float advance = nextAdvance;
                        nextAdvance = currentChar < length - 1 ? glyphVector.getGlyphMetrics(
                                currentChar + 1).getAdvance() * 0.5f : 0;
                        t.setToTranslation(x, y);
                        t.rotate(angle);
                        t.translate(-px - advance, -py + height * factor / 2.0f);
                        result.append(t.createTransformedShape(glyph), false);
                        next += (advance + nextAdvance) * factor;
                        currentChar++;
                        if (repeat)
                            currentChar %= length;
                    }
                }
                next -= distance;
                lastX = thisX;
                lastY = thisY;
                break;
            }
            it.next();
        }

        return result;
    }
View Full Code Here

Examples of java.awt.geom.FlatteningPathIterator

140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
        return result;
    }

    public float measurePathLength(Shape shape) {
        PathIterator it = new FlatteningPathIterator(shape.getPathIterator(null), FLATNESS);
        float points[] = new float[6];
        float moveX = 0, moveY = 0;
        float lastX = 0, lastY = 0;
        float thisX = 0, thisY = 0;
        int type = 0;
        float total = 0;

        while (!it.isDone()) {
            type = it.currentSegment(points);
            switch (type) {
            case PathIterator.SEG_MOVETO:
                moveX = lastX = points[0];
                moveY = lastY = points[1];
                break;

            case PathIterator.SEG_CLOSE:
                points[0] = moveX;
                points[1] = moveY;
                // Fall into....

            case PathIterator.SEG_LINETO:
                thisX = points[0];
                thisY = points[1];
                float dx = thisX - lastX;
                float dy = thisY - lastY;
                total += (float) Math.sqrt(dx * dx + dy * dy);
                lastX = thisX;
                lastY = thisY;
                break;
            }
            it.next();
        }

        return total;
    }
View Full Code Here

Examples of java.awt.geom.FlatteningPathIterator

54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
        this.theShape = t.createTransformedShape(shape);
    }

    public Shape createStrokedShape(Shape shape) {
        GeneralPath result = new GeneralPath();
        PathIterator it = new FlatteningPathIterator(shape.getPathIterator(null), FLATNESS);
        float points[] = new float[6];
        float moveX = 0, moveY = 0;
        float lastX = 0, lastY = 0;
        float thisX = 0, thisY = 0;
        int type = 0;
        float next = phase;

        while (!it.isDone()) {
            type = it.currentSegment(points);
            switch (type) {
            case PathIterator.SEG_MOVETO:
                moveX = lastX = points[0];
                moveY = lastY = points[1];
                result.moveTo(moveX, moveY);
                next = 0;
                break;

            case PathIterator.SEG_CLOSE:
                points[0] = moveX;
                points[1] = moveY;
                // Fall into....

            case PathIterator.SEG_LINETO:
                thisX = points[0];
                thisY = points[1];
                float dx = thisX - lastX;
                float dy = thisY - lastY;
                float distance = (float) Math.sqrt(dx * dx + dy * dy);
                if (distance >= next) {
                    float r = 1.0f / distance;
                    float angle = (float) Math.atan2(dy, dx);
                    while (distance >= next) {
                        float x = lastX + next * dx * r;
                        float y = lastY + next * dy * r;
                        t.setToTranslation(x, y);
                        t.rotate(angle);
                        result.append(t.createTransformedShape(theShape), false);
                        next += advance;
                    }
                }
                next -= distance;
                lastX = thisX;
                lastY = thisY;
                break;
            }
            it.next();
        }

        return result;
    }
View Full Code Here

Examples of java.awt.geom.FlatteningPathIterator

487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
  private Shape dashedStroke(PathIterator pi)
  {
    // The choice of (flatnessSq == width / 3) is made to be consistent with
    // the flattening in CubicSegment.getDisplacedSegments
    FlatteningPathIterator flat = new FlatteningPathIterator(pi,
                                                             Math.sqrt(width / 3));

    // Holds the endpoint of the current segment (or piece of a segment)
    double[] coords = new double[2];

    // Holds end of the last segment
    double x, y, x0, y0;
    x = x0 = y = y0 = 0;

    // Various useful flags
    boolean pathOpen = false;
    boolean dashOn = true;
    boolean offsetting = (phase != 0);

    // How far we are into the current dash
    double distance = 0;
    int dashIndex = 0;

    // And variables to hold the final output
    GeneralPath output = new GeneralPath();
    Segment[] p;

    // Iterate over the FlatteningPathIterator
    while (! flat.isDone())
      {
        switch (flat.currentSegment(coords))
          {
          case PathIterator.SEG_MOVETO:
            x0 = x = coords[0];
            y0 = y = coords[1];

            if (pathOpen)
              {
                capEnds();
                convertPath(output, start);
                start = end = null;
                pathOpen = false;
              }

            break;

          case PathIterator.SEG_LINETO:
            boolean segmentConsumed = false;

            while (! segmentConsumed)
              {
                // Find the total remaining length of this segment
                double segLength = Math.sqrt((x - coords[0]) * (x - coords[0])
                                             + (y - coords[1])
                                             * (y - coords[1]));
                boolean spanBoundary = true;
                double[] segmentEnd = null;

                // The current segment fits entirely inside the current dash
                if ((offsetting && distance + segLength <= phase)
                    || distance + segLength <= dash[dashIndex])
                  {
                    spanBoundary = false;
                  }
               
                // Otherwise, we need to split the segment in two, as this
                // segment spans a dash boundry
                else
                  {
                    segmentEnd = (double[]) coords.clone();

                    // Calculate the remaining distance in this dash,
                    // and coordinates of the dash boundary
                    double reqLength;
                    if (offsetting)
                      reqLength = phase - distance;
                    else
                      reqLength = dash[dashIndex] - distance;

                    coords[0] = x + ((coords[0] - x) * reqLength / segLength);
                    coords[1] = y + ((coords[1] - y) * reqLength / segLength);
                  }

                if (offsetting || ! dashOn)
                  {
                    // Dash is off, or we are in offset - treat this as a
                    // moveTo
                    x0 = x = coords[0];
                    y0 = y = coords[1];

                    if (pathOpen)
                      {
                        capEnds();
                        convertPath(output, start);
                        start = end = null;
                        pathOpen = false;
                      }
                  }
                else
                  {
                    // Dash is on - treat this as a lineTo
                    p = (new LineSegment(x, y, coords[0], coords[1])).getDisplacedSegments(width / 2.0);

                    if (! pathOpen)
                      {
                        start = p[0];
                        end = p[1];
                        pathOpen = true;
                      }
                    else
                      addSegments(p);

                    x = coords[0];
                    y = coords[1];
                  }

                // Update variables depending on whether we spanned a
                // dash boundary or not
                if (! spanBoundary)
                  {
                    distance += segLength;
                    segmentConsumed = true;
                  }
                else
                  {
                    if (offsetting)
                      offsetting = false;
                    dashOn = ! dashOn;
                    distance = 0;
                    coords = segmentEnd;

                    if (dashIndex + 1 == dash.length)
                      dashIndex = 0;
                    else
                      dashIndex++;

                    // Since the value of segmentConsumed is still false,
                    // the next run of the while loop will complete the segment
                  }
              }
            break;

          // This is a flattened path, so we don't need to deal with curves
          }
        flat.next();
      }

    if (pathOpen)
      {
        capEnds();
View Full Code Here

Examples of java.awt.geom.FlatteningPathIterator

65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
  class ZigzagStroke implements Stroke {
    private static final float FLATNESS = 1;

    public Shape createStrokedShape (Shape shape) {
      GeneralPath result = new GeneralPath();
      PathIterator it = new FlatteningPathIterator(shape.getPathIterator(null), FLATNESS);
      float points[] = new float[6];
      float moveX = 0, moveY = 0;
      float lastX = 0, lastY = 0;
      float thisX = 0, thisY = 0;
      int type = 0;
      float next = 0;
      int phase = 0;
      while (!it.isDone()) {
        type = it.currentSegment(points);
        switch (type) {
        case PathIterator.SEG_MOVETO:
          moveX = lastX = points[0];
          moveY = lastY = points[1];
          result.moveTo(moveX, moveY);
          next = wavelength / 2;
          break;

        case PathIterator.SEG_CLOSE:
          points[0] = moveX;
          points[1] = moveY;
          // Fall into....

        case PathIterator.SEG_LINETO:
          thisX = points[0];
          thisY = points[1];
          float dx = thisX - lastX;
          float dy = thisY - lastY;
          float distance = (float)Math.sqrt(dx * dx + dy * dy);
          if (distance >= next) {
            float r = 1.0f / distance;
            while (distance >= next) {
              float x = lastX + next * dx * r;
              float y = lastY + next * dy * r;
              if ((phase & 1) == 0)
                result.lineTo(x + amplitude * dy * r, y - amplitude * dx * r);
              else
                result.lineTo(x - amplitude * dy * r, y + amplitude * dx * r);
              next += wavelength;
              phase++;
            }
          }
          next -= distance;
          lastX = thisX;
          lastY = thisY;
          if (type == PathIterator.SEG_CLOSE) result.closePath();
          break;
        }
        it.next();
      }
      return new BasicStroke(getWidth(), BasicStroke.CAP_SQUARE, getJoin()).createStrokedShape(result);
    }
View Full Code Here

Examples of java.awt.geom.FlatteningPathIterator

66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
    private static final float FLATNESS = 1;

    public Shape createStrokedShape (Shape shape) {
      GeneralPath result = new GeneralPath();
      shape = new BasicStroke(getWidth(), BasicStroke.CAP_SQUARE, getJoin()).createStrokedShape(shape);
      PathIterator it = new FlatteningPathIterator(shape.getPathIterator(null), FLATNESS);
      float points[] = new float[6];
      float moveX = 0, moveY = 0;
      float lastX = 0, lastY = 0;
      float thisX = 0, thisY = 0;
      int type = 0;
      float next = 0;
      while (!it.isDone()) {
        type = it.currentSegment(points);
        switch (type) {
        case PathIterator.SEG_MOVETO:
          moveX = lastX = randomize(points[0]);
          moveY = lastY = randomize(points[1]);
          result.moveTo(moveX, moveY);
          next = 0;
          break;

        case PathIterator.SEG_CLOSE:
          points[0] = moveX;
          points[1] = moveY;
          // Fall into....

        case PathIterator.SEG_LINETO:
          thisX = randomize(points[0]);
          thisY = randomize(points[1]);
          float dx = thisX - lastX;
          float dy = thisY - lastY;
          float distance = (float)Math.sqrt(dx * dx + dy * dy);
          if (distance >= next) {
            float r = 1.0f / distance;
            while (distance >= next) {
              float x = lastX + next * dx * r;
              float y = lastY + next * dy * r;
              result.lineTo(randomize(x), randomize(y));
              next += detail;
            }
          }
          next -= distance;
          lastX = thisX;
          lastY = thisY;
          break;
        }
        it.next();
      }

      return result;
    }
View Full Code Here

Examples of java.awt.geom.FlatteningPathIterator

104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
  {
    FontRenderContext frc = new FontRenderContext( null, true, true );
    GlyphVector glyphVector = font.createGlyphVector( frc, text );

    GeneralPath result = new GeneralPath();
    PathIterator it = new FlatteningPathIterator( shape.getPathIterator( null ), FLATNESS );
    float points[] = new float[6];
    float moveX = 0, moveY = 0;
    float lastX = 0, lastY = 0;
    float thisX = 0, thisY = 0;
    int type = 0;
    // boolean first = false;
    float next = 0;
    int currentChar = 0;
    int length = glyphVector.getNumGlyphs();

    if( length == 0 )
      return result;

    float factor = stretchToFit ? measurePathLength( shape ) / (float)glyphVector.getLogicalBounds().getWidth() : 1.0f;
    float nextAdvance = 0;

    while( currentChar < length && !it.isDone() )
    {
      type = it.currentSegment( points );
      switch( type )
      {
        case PathIterator.SEG_MOVETO:
          moveX = lastX = points[0];
          moveY = lastY = points[1];
          result.moveTo( moveX, moveY );
          // first = true;
          nextAdvance = glyphVector.getGlyphMetrics( currentChar ).getAdvance() * 0.5f;
          next = nextAdvance;
          break;

        case PathIterator.SEG_CLOSE:
          points[0] = moveX;
          points[1] = moveY;
          // Fall into....

        case PathIterator.SEG_LINETO:
          thisX = points[0];
          thisY = points[1];
          float dx = thisX - lastX;
          float dy = thisY - lastY;
          float distance = (float)Math.sqrt( dx * dx + dy * dy );
          if( distance >= next )
          {
            float r = 1.0f / distance;
            float angle = (float)Math.atan2( dy, dx );
            while( currentChar < length && distance >= next )
            {
              Shape glyph = glyphVector.getGlyphOutline( currentChar );
              Point2D p = glyphVector.getGlyphPosition( currentChar );
              float px = (float)p.getX();
              float py = (float)p.getY();
              float x = lastX + next * dx * r;
              float y = lastY + next * dy * r;
              float advance = nextAdvance;
              nextAdvance = currentChar < length - 1 ? glyphVector.getGlyphMetrics( currentChar + 1 ).getAdvance() * 0.5f : 0;
              t.setToTranslation( x, y );
              t.rotate( angle );
              t.translate( -px - advance, -py );
              result.append( t.createTransformedShape( glyph ), false );
              next += ( advance + nextAdvance ) * factor;
              currentChar++;
              if( repeat )
                currentChar %= length;
            }
          }
          next -= distance;
          // first = false;
          lastX = thisX;
          lastY = thisY;
          break;
      }
      it.next();
    }

    return result;
  }
View Full Code Here

Examples of java.awt.geom.FlatteningPathIterator

191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
   *            the shape
   * @return the float
   */
  public float measurePathLength( Shape shape )
  {
    PathIterator it = new FlatteningPathIterator( shape.getPathIterator( null ), FLATNESS );
    float points[] = new float[6];
    float moveX = 0, moveY = 0;
    float lastX = 0, lastY = 0;
    float thisX = 0, thisY = 0;
    int type = 0;
    float total = 0;

    while( !it.isDone() )
    {
      type = it.currentSegment( points );
      switch( type )
      {
        case PathIterator.SEG_MOVETO:
          moveX = lastX = points[0];
          moveY = lastY = points[1];
          break;

        case PathIterator.SEG_CLOSE:
          points[0] = moveX;
          points[1] = moveY;
          // Fall into....

        case PathIterator.SEG_LINETO:
          thisX = points[0];
          thisY = points[1];
          float dx = thisX - lastX;
          float dy = thisY - lastY;
          total += (float)Math.sqrt( dx * dx + dy * dy );
          lastX = thisX;
          lastY = thisY;
          break;
      }
      it.next();
    }

    return total;
  }
View Full Code Here

Examples of java.awt.geom.FlatteningPathIterator

101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
    protected void initialise() {

  pathLength = 0f;

  FlatteningPathIterator fpi = new FlatteningPathIterator(path.getPathIterator(new AffineTransform()), 0.01f);
  segments = new Vector(20);
  float lastMoveX = 0f;
  float lastMoveY = 0f;
  float currentX = 0f;
  float currentY = 0f;
  float seg[] = new float[6];
  int segType;
   
  segments.add(new PathSegment(PathIterator.SEG_MOVETO, 0f, 0f, 0f));

  while (!fpi.isDone()) {
     
      segType = fpi.currentSegment(seg);
     
      switch (segType) {
   
      case PathIterator.SEG_MOVETO:
   
    //System.out.println("== MOVE TO " + seg[0] + " " + seg[1]);
   
    segments.add(new PathSegment(segType, seg[0], seg[1], pathLength));
    currentX = seg[0];
    currentY = seg[1];
    lastMoveX = currentX;
    lastMoveY = currentY;
   
    break;
   
      case PathIterator.SEG_LINETO:
   
    //System.out.println("== LINE TO " + seg[0] + " " + seg[1]);
   
    pathLength += Point2D.distance(currentX, currentY, seg[0], seg[1]);
    segments.add(new PathSegment(segType, seg[0], seg[1], pathLength));

    currentX = seg[0];
    currentY = seg[1];
   
    break;
   
      case PathIterator.SEG_CLOSE:
   
    //System.out.println("== CLOSE TO " + lastMoveX + " " + lastMoveY);

    pathLength += Point2D.distance(currentX, currentY, lastMoveX, lastMoveY);
    segments.add(new PathSegment(PathIterator.SEG_LINETO, lastMoveX, lastMoveY, pathLength));
       
    currentX = lastMoveX;
    currentY = lastMoveY;
       
    break;

      default:
       
    // ouch, where have these come from
    System.out.println("Bad path segment types");
   
      }
     
      fpi.next();
     
  }

  initialised = true;
View Full Code Here

Examples of java.awt.geom.FlatteningPathIterator

136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
    /**
     * @see java.awt.Stroke#createStrokedShape(java.awt.Shape)
     */
    public Shape createStrokedShape (Shape shape) {
      GeneralPath result = new GeneralPath();
      PathIterator it = new FlatteningPathIterator(shape.getPathIterator(null), FLATNESS);
      float points[] = new float[6];
      float moveX = 0, moveY = 0;
      float lastX = 0, lastY = 0;
      float thisX = 0, thisY = 0;
      int type = 0;
      float next = 0;
      int phase = 0;
      while (!it.isDone()) {
        type = it.currentSegment(points);
        switch (type) {
        case PathIterator.SEG_MOVETO:
          moveX = lastX = points[0];
          moveY = lastY = points[1];
          result.moveTo(moveX, moveY);
          next = wavelength / 2;
          break;

        case PathIterator.SEG_CLOSE:
          points[0] = moveX;
          points[1] = moveY;
          // Fall into....

        case PathIterator.SEG_LINETO:
          thisX = points[0];
          thisY = points[1];
          float dx = thisX - lastX;
          float dy = thisY - lastY;
          float distance = (float)Math.sqrt(dx * dx + dy * dy);
          if (distance >= next) {
            float r = 1.0f / distance;
            while (distance >= next) {
              float x = lastX + next * dx * r;
              float y = lastY + next * dy * r;
              if ((phase & 1) == 0)
                result.lineTo(x + amplitude * dy * r, y - amplitude * dx * r);
              else
                result.lineTo(x - amplitude * dy * r, y + amplitude * dx * r);
              next += wavelength;
              phase++;
            }
          }
          next -= distance;
          lastX = thisX;
          lastY = thisY;
          if (type == PathIterator.SEG_CLOSE) result.closePath();
          break;
        }
        it.next();
      }
      return new BasicStroke(getWidth(), BasicStroke.CAP_SQUARE, getJoin()).createStrokedShape(result);
    }
View Full Code Here
TOP
Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.