# anticln1.qry # This is a sample script for drawing the geological line symbol # for an anticline (solid, with arrows). Arrow symbols are drawn # with 0 line width, and arrow stems are redrawn with the line # width designated for the main line. # Modified to provide scaling for LegendView samples, August 2002; # Modified to declare all variables, October 2005; # Version Dec. 2007 # Requires TNTmips 2007:73 or later. # Modified to adjust scale based on georeference map units and to # put arrow symbols only at the center of each line. numeric red, green, blue, scale; numeric widthMap, width, arrowSize, arrowLengthMap; numeric halfSize, flipSize, angle, stemSize, dist; class RVC_GEOREFERENCE vGeoref; class SR_COORDREFSYS vectCRS; ###################### Set Parameters ############################## # red, green, blue variables define the color of the line red = 0; green = 0; blue = 0; # This variable defines the denominator of the intended map scale. # It is used as the basis for defining line width and symbol size # and spacing. # Example: for 1:24,000 map scale, Scale = 24000 scale = 24000; # This variable controls the width of the lines. # WidthMap is the desired map width in mm, assuming vector # coordinates are in meters. widthMap = 0.25; # This variable controls the length of the arrows # ArrowLengthMap is the desired arrow length in mm, assuming vector # coordinates are in meters: arrowLengthMap = 4; # Check if vector has geographic coordinates (units of degrees instead of meters) # and if so adjust scale factor to draw symbols of appropriate size. Vect.GetDefaultGeoref(vGeoref); vectCRS = vGeoref.GetCoordRefSys(); if (vectCRS.IsProjected() <> 1) { if (vectCRS.IsLocal() <> 1) { scale = scale * 0.000009; } } else { # CRS is projected; check coordinate units to adjust scale # get coordinate unit from the first axis of the planar coordinate system coordUnit$ = vectCRS.Coordsys.GetAxis(1).Unit.GetSymbol(); scale = scale * GetUnitConvDist("m", coordUnit$); } # set final dimensions for drawing if (DrawingLegendView == 1) { # set dimensions for LegendView based on sample size width = 0.1 * SampleRect.GetHeight(); arrowSize = 0.5 * SampleRect.GetHeight(); } else { # set dimensions for drawing elements in view scale = scale / 1000; # conversion from meters to millimeters width = widthMap * scale; arrowSize = arrowLengthMap * scale; } # This variable controls the length of the arrow head flipSize = 0.5 * arrowSize; # This variable controls the sweep angle of the arrow in degrees angle = 35; # 35 degree angle # This variable sets the length of the lines redrawn over the # arrow stems stemSize = arrowSize - flipSize * cosd(angle); ######################## Process ########################### # Set line color, width, and draw fold line. LineStyleSetColor(red,green,blue); LineStyleSetLineWidth(width); LineStyleDrawLine(); # Draw arrow symbols LineStyleSetPosition(0.5); LineStyleDropAnchor(1); LineStyleSetLineWidth(0); LineStyleDrawArrow(90, arrowSize, flipSize, angle, 1); LineStyleMoveToAnchor(1); LineStyleDrawArrow(-90, arrowSize, flipSize, angle, 1); # Redraw arrow stems LineStyleMoveToAnchor(1); LineStyleSetLineWidth(width); LineStyleLineTo(90, stemSize ); LineStyleMoveToAnchor(1); LineStyleLineTo(-90, stemSize );