Example usage for java.awt.geom AffineTransform getTranslateInstance

List of usage examples for java.awt.geom AffineTransform getTranslateInstance

Introduction

In this page you can find the example usage for java.awt.geom AffineTransform getTranslateInstance.

Prototype

public static AffineTransform getTranslateInstance(double tx, double ty) 

Source Link

Document

Returns a transform representing a translation transformation.

Usage

From source file:edu.uci.ics.jung.visualization.picking.ShapePickSupport.java

/**
 * Retrieves the shape template for <code>e</code> and
 * transforms it according to the positions of its endpoints
 * in <code>layout</code>.//from  w ww .  j a  va  2 s.  com
 * @param layout the <code>Layout</code> which specifies
 * <code>e</code>'s endpoints' positions
 * @param e the edge whose shape is to be returned
 * @return
 */
private Shape getTransformedEdgeShape(Layout<V, E> layout, E e) {
    Pair<V> pair = layout.getGraph().getEndpoints(e);
    V v1 = pair.getFirst();
    V v2 = pair.getSecond();
    boolean isLoop = v1.equals(v2);
    Point2D p1 = vv.getRenderContext().getMultiLayerTransformer().transform(Layer.LAYOUT, layout.transform(v1));
    Point2D p2 = vv.getRenderContext().getMultiLayerTransformer().transform(Layer.LAYOUT, layout.transform(v2));
    if (p1 == null || p2 == null)
        return null;
    float x1 = (float) p1.getX();
    float y1 = (float) p1.getY();
    float x2 = (float) p2.getX();
    float y2 = (float) p2.getY();

    // translate the edge to the starting vertex
    AffineTransform xform = AffineTransform.getTranslateInstance(x1, y1);

    Shape edgeShape = vv.getRenderContext().getEdgeShapeTransformer()
            .transform(Context.<Graph<V, E>, E>getInstance(vv.getGraphLayout().getGraph(), e));
    if (isLoop) {
        // make the loops proportional to the size of the vertex
        Shape s2 = vv.getRenderContext().getVertexShapeTransformer().transform(v2);
        Rectangle2D s2Bounds = s2.getBounds2D();
        xform.scale(s2Bounds.getWidth(), s2Bounds.getHeight());
        // move the loop so that the nadir is centered in the vertex
        xform.translate(0, -edgeShape.getBounds2D().getHeight() / 2);
    } else {
        float dx = x2 - x1;
        float dy = y2 - y1;
        // rotate the edge to the angle between the vertices
        double theta = Math.atan2(dy, dx);
        xform.rotate(theta);
        // stretch the edge to span the distance between the vertices
        float dist = (float) Math.sqrt(dx * dx + dy * dy);
        xform.scale(dist, 1.0f);
    }

    // transform the edge to its location and dimensions
    edgeShape = xform.createTransformedShape(edgeShape);
    return edgeShape;
}

From source file:com.t_oster.visicut.misc.Helper.java

/**
 * Returns an AffineTransform, which transformes src to dest
 * and constists of a scale and translate component
 * @param src//from ww  w .  j  a  v a2s .  c  o  m
 * @param dest
 * @return
 */
public static AffineTransform getTransform(Rectangle2D src, Rectangle2D dest) {
    AffineTransform scale = AffineTransform.getScaleInstance(dest.getWidth() / src.getWidth(),
            dest.getHeight() / src.getHeight());
    Point2D scaled = scale.transform(new Point.Double(src.getX(), src.getY()), null);
    AffineTransform result = AffineTransform.getTranslateInstance(dest.getX() - scaled.getX(),
            dest.getY() - scaled.getY());
    result.concatenate(scale);
    return result;
}

From source file:graph.eventhandlers.MyEditingGraphMousePlugin.java

/**
 * code lifted from PluggableRenderer to move an edge shape into an
 * arbitrary position//  w  ww  . j a  v a 2s. c om
 */
private void transformEdgeShape(Point2D down, Point2D out) {
    float x1 = (float) down.getX();
    float y1 = (float) down.getY();
    float x2 = (float) out.getX();
    float y2 = (float) out.getY();

    AffineTransform xform = AffineTransform.getTranslateInstance(x1, y1);

    float dx = x2 - x1;
    float dy = y2 - y1;
    float thetaRadians = (float) Math.atan2(dy, dx);
    xform.rotate(thetaRadians);
    float dist = (float) Math.sqrt(dx * dx + dy * dy);
    xform.scale(dist / rawEdge.getBounds().getWidth(), 1.0);
    edgeShape = xform.createTransformedShape(rawEdge);
}

From source file:com.flexive.shared.media.impl.FxMediaNativeEngine.java

/**
 * Flip the image horizontal/*from   w  ww  .  j a  va2  s .c  o m*/
 *
 * @param bufferedImage original image
 * @return horizontally flipped image
 */
private static BufferedImage flipHorizontal(BufferedImage bufferedImage) {
    AffineTransform at = AffineTransform.getTranslateInstance(bufferedImage.getWidth(), 0);
    at.scale(-1.0, 1.0);
    BufferedImageOp biOp = new AffineTransformOp(at, AffineTransformOp.TYPE_NEAREST_NEIGHBOR);
    BufferedImage imgRes = new BufferedImage(bufferedImage.getWidth(), bufferedImage.getHeight(),
            bufferedImage.getType());
    return biOp.filter(bufferedImage, imgRes);
}

From source file:graph.eventhandlers.MyEditingGraphMousePlugin.java

private void transformArrowShape(Point2D down, Point2D out) {
    float x1 = (float) down.getX();
    float y1 = (float) down.getY();
    float x2 = (float) out.getX();
    float y2 = (float) out.getY();

    AffineTransform xform = AffineTransform.getTranslateInstance(x2, y2);

    float dx = x2 - x1;
    float dy = y2 - y1;
    float thetaRadians = (float) Math.atan2(dy, dx);
    xform.rotate(thetaRadians);//from   w  w  w  . j a v  a2 s  .c o  m
    arrowShape = xform.createTransformedShape(rawArrowShape);
}

From source file:com.flexive.shared.media.impl.FxMediaNativeEngine.java

/**
 * Flip the image horizontal/*  w  w w .  j  a  v  a  2  s  . c o m*/
 *
 * @param bufferedImage original image
 * @return horizontally flipped image
 */
private static BufferedImage flipVertical(BufferedImage bufferedImage) {
    AffineTransform at = AffineTransform.getTranslateInstance(0, bufferedImage.getHeight());
    at.scale(1.0, -1.0);
    BufferedImageOp biOp = new AffineTransformOp(at, AffineTransformOp.TYPE_NEAREST_NEIGHBOR);
    BufferedImage imgRes = new BufferedImage(bufferedImage.getWidth(), bufferedImage.getHeight(),
            bufferedImage.getType());
    return biOp.filter(bufferedImage, imgRes);
}

From source file:business.ImageManager.java

public ImageIcon getArrow(double angle) {
    BufferedImage img = new BufferedImage(40, 40, BufferedImage.TRANSLUCENT);
    Graphics2D big = img.createGraphics();
    //setup para os rastros
    big.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    big.setStroke(// ww  w.  j  a v  a2  s.  c  o m
            new BasicStroke(2f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND, 1f, new float[] { 5f }, 0f));
    big.setColor(Color.red);

    int cx = this.getYellowBall().getIconWidth() / 2;
    int cy = this.getYellowBall().getIconHeight() / 2;
    AffineTransform at = AffineTransform.getTranslateInstance(cx, cy);
    at.rotate(Math.toRadians(angle));
    //        at.scale(2.0, 2.0);
    Shape shape = at.createTransformedShape(createArrow());
    big.setPaint(Color.red);
    big.draw(shape);
    ImageIcon ret = new ImageIcon(img);
    return (ret);
    //        tenta com o icone...angle.
}

From source file:com.github.lindenb.jvarkit.tools.misc.BamCmpCoverage.java

@Override
public Collection<Throwable> call() throws Exception {

    if (getOutputFile() == null) {
        return wrapException("output image file not defined");
    }//from w w w  . j  av a2 s  .co  m

    if (this.imgageSize < 1) {
        return wrapException("Bad image size:" + this.imgageSize);
    }

    if (this.minDepth < 0) {
        return wrapException("Bad min depth : " + this.minDepth);
    }
    if (this.minDepth >= this.maxDepth) {
        return wrapException("Bad min<max depth : " + this.minDepth + "<" + this.maxDepth);
    }

    if (this.getBedFile() != null) {
        readBedFile(this.getBedFile());
    }

    if (regionStr != null && this.intervals != null) {
        return wrapException("bed and interval both defined.");
    }

    final SamRecordFilter filter = new SamRecordFilter() {
        @Override
        public boolean filterOut(SAMRecord first, SAMRecord second) {
            return filterOut(first);
        }

        @Override
        public boolean filterOut(SAMRecord rec) {
            if (rec.getReadUnmappedFlag())
                return true;
            if (rec.isSecondaryOrSupplementary())
                return true;
            if (rec.getDuplicateReadFlag())
                return true;
            if (rec.getNotPrimaryAlignmentFlag())
                return true;
            if (rec.getReadFailsVendorQualityCheckFlag())
                return true;
            if (rec.getMappingQuality() == 0)
                return true;
            /* ignore non-overlapping BED, already checked with QuertInterval 
            if( intervals!=null &&
               ! intervals.containsOverlapping(
               new Interval(rec.getReferenceName(),
             rec.getAlignmentStart(),
             rec.getAlignmentEnd()))
             )
               {
               return true;
               }
               */

            return false;
        }
    };
    Set<File> files = new HashSet<File>();
    try {

        SamReaderFactory srf = SamReaderFactory.makeDefault().validationStringency(ValidationStringency.SILENT);
        srf.disable(SamReaderFactory.Option.EAGERLY_DECODE);
        srf.disable(SamReaderFactory.Option.INCLUDE_SOURCE_IN_RECORDS);
        srf.disable(SamReaderFactory.Option.VALIDATE_CRC_CHECKSUMS);
        final List<String> args = this.getInputFiles();
        for (String arg : args) {
            File f = new File(arg);
            if (f.getName().endsWith(".list")) {
                LOG.info("Reading BAM list from " + f);
                BufferedReader in = IOUtils.openFileForBufferedReading(f);
                String line;
                while ((line = in.readLine()) != null) {
                    if (line.trim().isEmpty() || line.startsWith("#"))
                        continue;
                    files.add(new File(line));
                }
                in.close();
            } else {
                files.add(f);
            }
        }
        if (files.isEmpty()) {
            return wrapException("No BAM defined");
        }

        Comparator<SAMRecord> comparator = new Comparator<SAMRecord>() {
            @Override
            public int compare(SAMRecord samRecord1, SAMRecord samRecord2) {
                final int refIndex1 = samRecord1.getReferenceIndex();
                final int refIndex2 = samRecord2.getReferenceIndex();
                if (refIndex1 == -1) {
                    return (refIndex2 == -1 ? 0 : 1);
                } else if (refIndex2 == -1) {
                    return -1;
                }
                final int cmp = refIndex1 - refIndex2;
                if (cmp != 0) {
                    return cmp;
                }
                return samRecord1.getAlignmentStart() - samRecord2.getAlignmentStart();
            }
        };
        List<SamReader> readers = new ArrayList<SamReader>(files.size());
        List<CloseableIterator<SAMRecord>> iterators = new ArrayList<CloseableIterator<SAMRecord>>(
                files.size());

        Set<String> samples = new TreeSet<String>();
        SAMSequenceDictionary dict = null;

        /* will be initialized below once, if needed */
        QueryInterval queryIntervalArray[] = null;

        //scan samples names
        for (File bamFile : files) {
            SamReader r = srf.open(bamFile);
            readers.add(r);

            SAMFileHeader h = r.getFileHeader();
            if (h.getSortOrder() != SortOrder.coordinate) {
                r.close();
                return wrapException("file " + bamFile + " not sorted on coordinate");
            }
            if (dict == null) {
                dict = h.getSequenceDictionary();
            } else if (!SequenceUtil.areSequenceDictionariesEqual(dict, h.getSequenceDictionary())) {
                return wrapException("Found more than one dictint sequence dictionary");
            }

            //fill query interval once
            List<QueryInterval> queryIntervals = new ArrayList<>();
            if (regionStr != null && queryIntervalArray == null) {
                int colon = regionStr.indexOf(':');
                String chrom;
                int chromStart;
                int chromEnd;

                if (colon == -1) {
                    chrom = regionStr;
                } else {
                    chrom = regionStr.substring(0, colon);
                }

                SAMSequenceRecord ssr = dict.getSequence(chrom);
                if (ssr == null) {
                    return wrapException("Chromosome " + chrom + " not present in dictionary");
                }
                int hyphen = regionStr.indexOf('-', colon + 1);
                if (hyphen != -1) {
                    chromStart = Integer.parseInt(regionStr.substring(colon + 1, hyphen));
                    chromEnd = Integer.parseInt(regionStr.substring(hyphen + 1));
                } else {
                    chromStart = 0;
                    chromEnd = ssr.getSequenceLength() - 1;
                }
                if (chromStart < 0 || chromEnd < chromStart) {
                    return wrapException("bad position in " + regionStr);
                }

                queryIntervals.add(new QueryInterval(ssr.getSequenceIndex(), chromStart, chromEnd));
            }

            if (this.intervals != null && queryIntervalArray == null) {
                for (Interval interval : this.intervals.keySet()) {
                    SAMSequenceRecord ssr = dict.getSequence(interval.getContig());
                    if (ssr == null) {
                        return wrapException(
                                "Chromosome " + interval.getContig() + " not present in dictionary");
                    }
                    queryIntervals.add(
                            new QueryInterval(ssr.getSequenceIndex(), interval.getStart(), interval.getEnd()));
                }
            }

            if (!queryIntervals.isEmpty() && queryIntervalArray == null) {
                Collections.sort(queryIntervals);
                queryIntervalArray = queryIntervals.toArray(new QueryInterval[queryIntervals.size()]);
            }

            for (SAMReadGroupRecord rg : h.getReadGroups()) {
                String sample = rg.getSample();
                if (sample == null)
                    continue;
                samples.add(sample);
            }
            CloseableIterator<SAMRecord> reciterator = null;
            if (queryIntervalArray == null) {
                reciterator = r.iterator();
            } else {
                reciterator = r.query(queryIntervalArray, false);
            }

            reciterator = new FilteringIterator(reciterator, filter);
            iterators.add(reciterator);
        }
        //free GC
        queryIntervalArray = null;

        LOG.info("Samples:" + samples.size());
        for (String sample : samples) {
            this.sample2column.put(sample, this.sample2column.size());
        }

        //create merging sam-reader
        MergingSamRecordIterator iter = new MergingSamRecordIterator(comparator, iterators);

        //create image
        LOG.info("Creating image " + this.imgageSize + "x" + this.imgageSize);
        this.image = new BufferedImage(this.imgageSize, this.imgageSize, BufferedImage.TYPE_INT_RGB);
        Graphics2D g = this.image.createGraphics();
        this.marginWidth = this.imgageSize * 0.05;
        double drawingWidth = (this.imgageSize - 1) - marginWidth;
        this.sampleWidth = drawingWidth / samples.size();
        //g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        g.setColor(Color.WHITE);
        g.fillRect(0, 0, this.imgageSize, this.imgageSize);
        g.setColor(Color.BLACK);
        Hershey hershey = new Hershey();
        for (String sample_x : samples) {
            double labelHeight = marginWidth;
            if (labelHeight > 50)
                labelHeight = 50;

            g.setColor(Color.BLACK);
            hershey.paint(g, sample_x, marginWidth + sample2column.get(sample_x) * sampleWidth,
                    marginWidth - labelHeight, sampleWidth * 0.9, labelHeight * 0.9);

            AffineTransform old = g.getTransform();
            AffineTransform tr = AffineTransform.getTranslateInstance(marginWidth,
                    marginWidth + sample2column.get(sample_x) * sampleWidth);
            tr.rotate(Math.PI / 2);
            g.setTransform(tr);
            hershey.paint(g, sample_x, 0.0, 0.0, sampleWidth * 0.9, labelHeight * 0.9); //g.drawString(this.tabixFile.getFile().getName(),0,0);
            g.setTransform(old);

            for (String sample_y : samples) {

                Rectangle2D rect = new Rectangle2D.Double(
                        marginWidth + sample2column.get(sample_x) * sampleWidth,
                        marginWidth + sample2column.get(sample_y) * sampleWidth, sampleWidth, sampleWidth);
                g.setColor(Color.BLUE);
                g.draw(new Line2D.Double(rect.getMinX(), rect.getMinY(), rect.getMaxX(), rect.getMaxY()));
                g.setColor(Color.BLACK);
                g.draw(rect);
            }
        }

        //ceate bit-array
        BitSampleMatrix bitMatrix = new BitSampleMatrix(samples.size());

        //preivous chrom
        //int prev_tid=-1;
        BufferedList<Depth> depthList = new BufferedList<Depth>();
        g.setColor(Color.BLACK);
        SAMSequenceDictionaryProgress progress = new SAMSequenceDictionaryProgress(dict);
        LOG.info("Scanning bams...");
        while (iter.hasNext()) {
            SAMRecord rec = iter.next();
            if (filter.filterOut(rec))
                continue;
            progress.watch(rec);

            SAMReadGroupRecord gr = rec.getReadGroup();
            if (gr == null)
                continue;
            String sample = gr.getSample();
            if (sample == null)
                continue;
            int sample_id = this.sample2column.get(sample);

            Cigar cigar = rec.getCigar();
            if (cigar == null)
                continue;
            int refPos = rec.getAlignmentStart();

            /* cleanup front pos */
            while (!depthList.isEmpty()) {
                Depth front = depthList.getFirst();

                if (front.tid != rec.getReferenceIndex().intValue() || front.pos < refPos) {
                    paint(bitMatrix, front);
                    depthList.removeFirst();
                    continue;
                } else {
                    break;
                }
            }

            for (CigarElement ce : cigar.getCigarElements()) {
                CigarOperator op = ce.getOperator();
                if (!op.consumesReferenceBases())
                    continue;
                if (op.consumesReadBases()) {
                    for (int i = 0; i < ce.getLength(); ++i) {
                        Depth depth = null;
                        int pos = refPos + i;

                        //ignore non-overlapping BED
                        if (this.intervals != null && !this.intervals
                                .containsOverlapping(new Interval(rec.getReferenceName(), pos, pos))) {
                            continue;
                        } else if (depthList.isEmpty()) {
                            depth = new Depth();
                            depth.pos = pos;
                            depth.tid = rec.getReferenceIndex();
                            depthList.add(depth);
                        } else if (depthList.getLast().pos < pos) {
                            Depth prev = depthList.getLast();

                            while (prev.pos < pos) {
                                depth = new Depth();
                                depth.pos = prev.pos + 1;
                                depth.tid = rec.getReferenceIndex();
                                depthList.add(depth);
                                prev = depth;
                            }
                            depth = prev;
                        }

                        else {
                            int lastPos = depthList.get(depthList.size() - 1).pos;
                            int distance = lastPos - pos;
                            int indexInList = (depthList.size() - 1) - (distance);
                            if (indexInList < 0) {
                                //can appen when BED declared and partially overlap the read
                                continue;
                            }

                            depth = depthList.get((depthList.size() - 1) - (distance));
                            if (depth.pos != pos) {
                                return wrapException(" " + pos + " vs " + depth.pos + " " + lastPos);
                            }
                        }
                        depth.depths[sample_id]++;
                    }
                }
                refPos += ce.getLength();
            }
        }
        while (!depthList.isEmpty()) {
            //paint(g,depthList.remove(0));
            paint(bitMatrix, depthList.remove(0));
        }
        progress.finish();
        iter.close();

        //paint bitset

        for (int x = 0; x < bitMatrix.n_samples; ++x) {
            for (int y = 0; y < bitMatrix.n_samples; ++y) {
                LOG.info("Painting...(" + x + "/" + y + ")");
                paint(g, bitMatrix.get(x, y));
            }
        }

        g.dispose();
        //close readers
        for (SamReader r : readers)
            r.close();

        //save file
        LOG.info("saving " + getOutputFile());
        if (getOutputFile().getName().toLowerCase().endsWith(".png")) {
            ImageIO.write(this.image, "PNG", getOutputFile());
        } else {
            ImageIO.write(this.image, "JPG", getOutputFile());
        }

        return Collections.emptyList();
    } catch (Exception err) {
        return wrapException(err);
    } finally {

    }
}

From source file:edu.uci.ics.jung.visualization.PluggableRenderer.java

/**
 * Draws the edge <code>e</code>, whose endpoints are at <code>(x1,y1)</code>
 * and <code>(x2,y2)</code>, on the graphics context <code>g</code>.
 * The <code>Shape</code> provided by the <code>EdgeShapeFunction</code> instance
 * is scaled in the x-direction so that its width is equal to the distance between
 * <code>(x1,y1)</code> and <code>(x2,y2)</code>.
 *///w  w  w . j  a v a  2 s.c  o m
protected void drawSimpleEdge(Graphics2D g, Edge e, int x1, int y1, int x2, int y2) {
    Pair endpoints = e.getEndpoints();
    Vertex v1 = (Vertex) endpoints.getFirst();
    Vertex v2 = (Vertex) endpoints.getSecond();
    boolean isLoop = v1.equals(v2);
    Shape s2 = vertexShapeFunction.getShape(v2);
    Shape edgeShape = edgeShapeFunction.getShape(e);

    boolean edgeHit = true;
    boolean arrowHit = true;
    Rectangle deviceRectangle = null;
    if (screenDevice != null) {
        Dimension d = screenDevice.getSize();
        if (d.width <= 0 || d.height <= 0) {
            d = screenDevice.getPreferredSize();
        }
        deviceRectangle = new Rectangle(0, 0, d.width, d.height);
    }

    AffineTransform xform = AffineTransform.getTranslateInstance(x1, y1);

    if (isLoop) {
        // this is a self-loop. scale it is larger than the vertex
        // it decorates and translate it so that its nadir is
        // at the center of the vertex.
        Rectangle2D s2Bounds = s2.getBounds2D();
        xform.scale(s2Bounds.getWidth(), s2Bounds.getHeight());
        xform.translate(0, -edgeShape.getBounds2D().getWidth() / 2);
    } else {
        // this is a normal edge. Rotate it to the angle between
        // vertex endpoints, then scale it to the distance between
        // the vertices
        float dx = x2 - x1;
        float dy = y2 - y1;
        float thetaRadians = (float) Math.atan2(dy, dx);
        xform.rotate(thetaRadians);
        float dist = (float) Math.sqrt(dx * dx + dy * dy);
        xform.scale(dist, 1.0);
    }

    edgeShape = xform.createTransformedShape(edgeShape);

    edgeHit = viewTransformer.transform(edgeShape).intersects(deviceRectangle);

    if (edgeHit == true) {

        Paint oldPaint = g.getPaint();

        // get Paints for filling and drawing
        // (filling is done first so that drawing and label use same Paint)
        Paint fill_paint = edgePaintFunction.getFillPaint(e);
        if (fill_paint != null) {
            g.setPaint(fill_paint);
            g.fill(edgeShape);
        }
        Paint draw_paint = edgePaintFunction.getDrawPaint(e);
        if (draw_paint != null) {
            g.setPaint(draw_paint);
            g.draw(edgeShape);
        }

        float scalex = (float) g.getTransform().getScaleX();
        float scaley = (float) g.getTransform().getScaleY();
        // see if arrows are too small to bother drawing
        if (scalex < .3 || scaley < .3)
            return;

        if (edgeArrowPredicate.evaluate(e)) {

            Shape destVertexShape = vertexShapeFunction.getShape((Vertex) e.getEndpoints().getSecond());
            AffineTransform xf = AffineTransform.getTranslateInstance(x2, y2);
            destVertexShape = xf.createTransformedShape(destVertexShape);

            arrowHit = viewTransformer.transform(destVertexShape).intersects(deviceRectangle);
            if (arrowHit) {

                AffineTransform at;
                if (edgeShape instanceof GeneralPath)
                    at = getArrowTransform((GeneralPath) edgeShape, destVertexShape);
                else
                    at = getArrowTransform(new GeneralPath(edgeShape), destVertexShape);
                if (at == null)
                    return;
                Shape arrow = edgeArrowFunction.getArrow(e);
                arrow = at.createTransformedShape(arrow);
                // note that arrows implicitly use the edge's draw paint
                g.fill(arrow);
            }
            if (e instanceof UndirectedEdge) {
                Shape vertexShape = vertexShapeFunction.getShape((Vertex) e.getEndpoints().getFirst());
                xf = AffineTransform.getTranslateInstance(x1, y1);
                vertexShape = xf.createTransformedShape(vertexShape);

                arrowHit = viewTransformer.transform(vertexShape).intersects(deviceRectangle);

                if (arrowHit) {
                    AffineTransform at;
                    if (edgeShape instanceof GeneralPath)
                        at = getReverseArrowTransform((GeneralPath) edgeShape, vertexShape, !isLoop);
                    else
                        at = getReverseArrowTransform(new GeneralPath(edgeShape), vertexShape, !isLoop);
                    if (at == null)
                        return;
                    Shape arrow = edgeArrowFunction.getArrow(e);
                    arrow = at.createTransformedShape(arrow);
                    g.fill(arrow);
                }
            }
        }
        // use existing paint for text if no draw paint specified
        if (draw_paint == null)
            g.setPaint(oldPaint);
        String label = edgeStringer.getLabel(e);
        if (label != null) {
            labelEdge(g, e, label, x1, x2, y1, y2);
        }

        // restore old paint
        g.setPaint(oldPaint);
    }
}

From source file:com.lizardtech.expresszip.model.Job.java

private BufferedImage mattCroppedImage(final BufferedImage source, GridCoverage2D cropped, int bufferType) {
    int height = source.getHeight();
    int width = source.getWidth();
    BufferedImage image = new BufferedImage(width, height, bufferType);
    Graphics2D gr = image.createGraphics(); // the way getRenderedImage works, this image should be drawn at 0, 0, not at based
    // on where the coverage's tile is
    AffineTransform at = AffineTransform.getTranslateInstance(0, 0);
    gr.drawRenderedImage(cropped.getRenderedImage(), at);
    return image;
}