?? buildgraph.java
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errorAtLine( "Incorrect keyword in Contour specification"); return false; } else { return true; } } else { errorAtLine("Incorrect keyword in Graph specification"); return false; } } } } /** * @return <i>true</i> if the build was successful */ protected boolean buildContour(NamedObject nobj) { switch (nobj.id) { case NUMBER: ((Contour)graph).setNLevels( ((Integer)(nobj.getObject())).intValue() ); break; case LLEVELS: ((Contour)graph).setLabelLevels( ((Integer)(nobj.getObject())).intValue() ); break; case COLOR: ((Contour)graph).setContourColor( (Color)(nobj.getObject())); break; case LOGCONTOURS: ((Contour)graph).logLevels = true; break; default: return false; } return true; } /** * @return <i>true</i> if the build was successful */ protected boolean buildFont() { String name = "TimesRoman"; int style = Font.PLAIN; int size = 20; NamedObject nobj; Font f; while( true ) { nobj = (NamedObject)(object.pop()); debugMessage("Font",nobj.id); switch (nobj.id) { case NAME: name = (String)(nobj.getObject()); break; case SIZE: size = ((Integer)(nobj.getObject())).intValue(); break; case PLAIN: style += Font.PLAIN; break; case BOLD: style += Font.BOLD; break; case ITALIC: style += Font.ITALIC; break; case BEGIN: try { f = new Font(name,style,size); nobj = new NamedObject(f,FONT); object.push(nobj); applet.showStatus("BuildGraph: Built Font!"); return true; } catch(Exception e) { errorAtLine("Ill formed font specification"); return false; } default: errorAtLine("Incorrect keyword in Font specification"); return false; } } } /** * @return <i>true</i> if the build was successful */ protected boolean buildTitle() { NamedObject nobj; TextLine title = new RTextLine(); while( true ) { nobj = (NamedObject)(object.pop()); debugMessage("Title",nobj.id); switch (nobj.id) { case NAME: title.setText((String)(nobj.getObject())); break; case FONT: title.setFont((Font)(nobj.getObject())); break; case COLOR: title.setColor((Color)(nobj.getObject())); break; case BEGIN: nobj = new NamedObject(title,TITLE); object.push(nobj); applet.showStatus("BuildGraph: Built Title!"); return true; default: errorAtLine("Incorrect keyword in Title specification"); return false; } } } /** * @return <i>true</i> if the build was successful */ protected boolean buildLabel() { NamedObject nobj; NamedObject color = null; NamedObject font = null; while( true ) { nobj = (NamedObject)(object.pop()); debugMessage("Label",nobj.id); switch (nobj.id) { case FONT: font = nobj; font.setId(LABEL_FONT); break; case COLOR: color = nobj; color.setId(LABEL_COLOR); break; case BEGIN: if(color != null) object.push(color); if(font != null) object.push(font); applet.showStatus("BuildGraph: Built Axis Label!"); return true; default: errorAtLine("Incorrect keyword in Label specification"); return false; } } } /* * @return <i>true</i> if the build was successful */ protected boolean buildMarker() { NamedObject nobj; Markers m = null; NamedObject size = null; NamedObject color = null; NamedObject style = null; while( true ) { nobj = (NamedObject)(object.pop()); debugMessage("Marker",nobj.id); switch (nobj.id) { case SIZE: size = nobj; size.setId(MARKER_SIZE); break; case COLOR: color = nobj; color.setId(MARKER_COLOR); break; case STYLE: style = nobj; if( style.getObject() instanceof Integer) { style.setId(MARKER_STYLE); } else { errorAtLine("Style should be an Integer in MARKER"); return false; } break; case URL: try { m = new Markers( (URL)nobj.getObject() ); } catch(Exception e) { errorAtLine("Failed to load markers: "+ e.getMessage()); } break; case BEGIN: if(m != null) { nobj = new NamedObject(m,MARKER); object.push(nobj); built.addElement(m); applet.showStatus( "BuildGraph: Loaded Marker file!"); return true; } else { if(color != null) object.push(color); if(size != null) object.push(size); if(style != null) object.push(style); applet.showStatus("BuildGraph: Built Marker!"); return true; } default: errorAtLine("Incorrect keyword in MARKER specification"); return false; } } } /** * @return <i>true</i> if the build was successful */ protected boolean buildData(int type) { NamedObject nobj; DataSet data = new DataSet(); NamedObject ndata = new NamedObject(data,DATA); ParseFunction parsef = null; LoadData load = null; double xmin = 0.0; double xmax = 0.0; double ymin = 0.0; double ymax = 0.0; int nx = 0; int ny = 0; if(type == CDATA && !(graph instanceof Contour)) { errorAtLine("CDATA can only be used in CONTOUR!"); } while( true ) { nobj = (NamedObject)(object.pop()); debugMessage("Data",nobj.id); switch (nobj.id) { case NAME: ndata.setName((String)(nobj.getObject())); break; case MARKER_STYLE: data.marker = ((Integer)(nobj.getObject())).intValue(); break; case MARKER_SIZE: data.markerscale = (double)(((Integer)(nobj.getObject())).intValue()); break; case MARKER_COLOR: data.markercolor = (Color)(nobj.getObject()); break; case OFF: data.linestyle = 0; break; case ON: data.linestyle = 1; break; case COLOR: if(type == CDATA) { ((Contour)graph).setContourColor( (Color)(nobj.getObject())); } else { data.linecolor = (Color)(nobj.getObject()); } break; case URL: load = new LoadData(data); load.loadDataSet( (URL)(nobj.getObject()), graph); break; case FUNCTION: parsef = new ParseFunction((String)(nobj.getObject())); if(!parsef.parse()) { errorAtLine("Error in function definition!"); return false; } break; case XNUMBER: nx = ((Integer)(nobj.getObject())).intValue(); break; case XMIN: xmin = ((Double)(nobj.getObject())).doubleValue(); break; case XMAX: xmax = ((Double)(nobj.getObject())).doubleValue(); break; case YNUMBER: ny = ((Integer)(nobj.getObject())).intValue(); break; case YMIN: ymin = ((Double)(nobj.getObject())).doubleValue(); break; case YMAX: ymax = ((Double)(nobj.getObject())).doubleValue(); break; case BEGIN: if( parsef != null && type == CDATA ) { if( !(graph instanceof Contour) ) { errorAtLine("CDATA should only be used for Contours!"); return false; } double array[] = arrayFromFunction(parsef,nx,xmin,xmax, ny,ymin,ymax); if(array == null) { errorAtLine("Unable to build Data from Function"); return false; } ((Contour)graph).setRange(xmin,xmax,ymin,ymax); ((Contour)graph).setGrid(array,nx,ny); return true; } else if( parsef != null ) { double array[] = arrayFromFunction(parsef,nx,xmin,xmax); if(array == null) { errorAtLine("Unable to build Data from Function"); return false; } try { data.append(array,nx); object.push(ndata); datasets.addElement(ndata); built.addElement(data); return true; } catch(Exception e) { return false; } } else if( load == null ) { errorAtLine("No URL has been defined for Data!"); return false; } object.push(ndata); built.addElement(data); built.addElement(load); datasets.addElement(ndata); applet.showStatus("BuildGraph: Loading Data!"); return true; default: errorAtLine("Incorrect keyword in Data specification"); return false; } } } protected double[] arrayFromFunction(ParseFunction f, int nx, double xmin, double xmax) { double x; double y; double array[] = new double[2*nx]; double xinc = (xmax-xmin)/(nx-1); int count = 0; for(int i=0; i<nx; i++) { x = xmin + i*xinc; try { y = f.getResult(x); array[count++] = x; array[count++] = y; } catch (Exception e) { } } if(count == 0) return null; return array; } protected double[] arrayFromFunction(ParseFunction f, int nx, double xmin, double xmax, int ny, double ymin, double ymax) { double x; double y; double array[] = new double[ny*nx]; double xinc = (xmax-xmin)/(nx-1); double yinc = (ymax-ymin)/(ny-1); int count = 0; for(int j=0; j<ny; j++) { y = ymin + j*yinc; for(int i=0; i<nx; i++) { x = xmin + i*xinc; try { array[count++] = f.getResult(x,y); } catch (Exception e) { array[count++] = 0.0; } } } if(count == 0) return null; ?? 快捷鍵說明
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