writer.setValue(Double.toString(atx.getScaleX())); writer.endNode(); writer.startNode("scaleY"); writer.setValue(Double.toString(atx.getScaleY())); writer.endNode(); writer.startNode("shearX"); writer.setValue(Double.toString(atx.getShearX())); writer.endNode(); writer.startNode("shearY"); writer.setValue(Double.toString(atx.getShearY())); writer.endNode(); writer.startNode("translateX");
/** * Returns the magnitude of scale factor <var>x</var> by cancelling the effect of eventual flip * and rotation. This factor is calculated by <IMG * src="{@docRoot}/org/geotools/display/canvas/doc-files/scaleX0.png">. */ public static double getScaleX0(final AffineTransform tr) { final double scale = tr.getScaleX(); final double shear = tr.getShearX(); if (shear == 0) return Math.abs(scale); // Optimization for a very common case. if (scale == 0) return Math.abs(shear); // Not as common as above, but still common enough. return Math.hypot(scale, shear); }
private boolean allIdentities(List<AffineTransform> transform) { for (AffineTransform at : transform) { if (!(eqTol(at.getScaleX(), 1, EPS) && eqTol(at.getScaleY(), 1, EPS) && eqTol(Math.abs(at.getShearX()), 0, EPS) && eqTol(Math.abs(at.getShearX()), 0, EPS) && eqTol(Math.abs(at.getTranslateX()), 0, 0.5) && eqTol(Math.abs(at.getTranslateY()), 0, 0.5))) { return false; } } return true; }
AffineTransform aTX = (AffineTransform) geometry.getGridToCRS(); writer.write("<geoTransform>"); writer.write("<scaleX>" + aTX.getScaleX() + "</scaleX>\n"); writer.write("<scaleY>" + aTX.getScaleY() + "</scaleY>\n"); writer.write("<shearX>" + aTX.getShearX() + "</shearX>\n"); writer.write("<shearY>" + aTX.getShearY() + "</shearY>\n"); writer.write("<translateX>" + aTX.getTranslateX() + "</translateX>\n"); writer.write("<translateY>" + aTX.getTranslateY() + "</translateY>\n");
private boolean allIdentities(List<AffineTransform> transform) { for (AffineTransform at : transform) { if (!(eqTol(at.getScaleX(), 1, EPS) && eqTol(at.getScaleY(), 1, EPS) && eqTol(Math.abs(at.getShearX()), 0, EPS) && eqTol(Math.abs(at.getShearX()), 0, EPS) && eqTol(Math.abs(at.getTranslateX()), 0, 0.5) && eqTol(Math.abs(at.getTranslateY()), 0, 0.5))) { return false; } } return true; }
/** * Checks the transformation is a pure scale/translate instance (using a tolerance) * @param transform * @return */ protected final boolean isScaleTranslate(MathTransform transform) { if(!(transform instanceof AffineTransform)) return false; AffineTransform at = (AffineTransform) transform; return at.getShearX() < EPS && at.getShearY() < EPS; }
/** Gets the derivative of this transform at a point. */ @Override public Matrix derivative(final Point2D point) { final AffineTransform tr = new AffineTransform(); getAffineTransform(point.getX(), point.getY(), tr); return new Matrix2( tr.getScaleX(), tr.getShearX(), tr.getShearY(), tr.getScaleY()); }
/** * Checks the transformation is a pure scale/translate instance (using a * tolerance) * * @param transform * @return */ protected final boolean isScaleTranslate(MathTransform transform) { if (!(transform instanceof AffineTransform)) return false; AffineTransform at = (AffineTransform) transform; return at.getShearX() < EPS && at.getShearY() < EPS; }
/** * @param ls * @param at * @param generalize * @param maxDistance */ public void init(LineString ls, AffineTransform at, boolean generalize, float maxDistance) { if (at == null) at = new AffineTransform(); _init(ls, at, generalize, maxDistance); xScale = (float) Math.sqrt( (at.getScaleX() * at.getScaleX()) + (at.getShearX() * at.getShearX())); yScale = (float) Math.sqrt( (at.getScaleY() * at.getScaleY()) + (at.getShearY() * at.getShearY())); }
/** * Creates a matrix with the same elements as the given AffineTransform. * @param at */ public Matrix(AffineTransform at) { single = new float[DEFAULT_SINGLE.length]; System.arraycopy(DEFAULT_SINGLE, 0, single, 0, DEFAULT_SINGLE.length); single[0] = (float)at.getScaleX(); single[1] = (float)at.getShearY(); single[3] = (float)at.getShearX(); single[4] = (float)at.getScaleY(); single[6] = (float)at.getTranslateX(); single[7] = (float)at.getTranslateY(); }
/** * Set the values of the matrix from the AffineTransform. * * @param af The transform to get the values from. * @deprecated Use the {@link #Matrix(AffineTransform)} constructor instead. */ @Deprecated public void setFromAffineTransform( AffineTransform af ) { single[0] = (float)af.getScaleX(); single[1] = (float)af.getShearY(); single[3] = (float)af.getShearX(); single[4] = (float)af.getScaleY(); single[6] = (float)af.getTranslateX(); single[7] = (float)af.getTranslateY(); }
/** * Sets this matrix to the specified affine transform. * * @since 2.3 */ public void setMatrix(final AffineTransform transform) { mat.a11 = transform.getScaleX(); mat.a12 = transform.getShearX(); mat.a13 = transform.getTranslateX(); mat.a21 = transform.getShearY(); mat.a22 = transform.getScaleY(); mat.a23 = transform.getTranslateY(); mat.a31 = 0; mat.a32 = 0; mat.a33 = 1; }
/** * Returns {@code true} if this matrix is equals to the specified affine transform. * * @since 2.3 */ public boolean equalsAffine(final AffineTransform transform) { return mat.a11 == transform.getScaleX() && mat.a12 == transform.getShearX() && mat.a13 == transform.getTranslateX() && mat.a21 == transform.getShearY() && mat.a22 == transform.getScaleY() && mat.a23 == transform.getTranslateY() && mat.a31 == 0 && mat.a32 == 0 && mat.a33 == 1; }