# anticln6.qry # This is a sample script for drawing a geological line symbol # for an anticline (dashed, without arrows: for Japan). # 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 approximate center of each line. numeric red, green, blue, scale, dashMap, dashSize; numeric widthMap, width, lengthMap, halfSize, lineCheck; numeric arrowDrawn; # flag to indicate whether arrow symbol has been drawn 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; # These variables set the length of the dashes # DashMap is the desired dash length in mm, assuming vector # coordinates are in meters: dashMap = 2; # This variable controls the width of the lines. # WidthMap is the desired map width in mm, assuming vector # coordinates are in meters. widthMap = 0.3; # This variable controls the length of the crossing lines # LengthMap is the desired length in mm, assuming vector # coordinates are in meters: lengthMap = 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 dashSize = 0.3 * SampleRect.GetWidth(); halfSize = 0.4 * SampleRect.GetHeight(); width = 0.1 * SampleRect.GetHeight(); } else { # set dimensions for drawing elements in View scale = scale / 1000; # conversion from meters to millimeters dashSize = dashMap * scale; width = widthMap * scale; halfSize = 0.5 * lengthMap * scale; } halfDash = dashSize * 0.5; # get length of line and set check location dashSize less than # the midpoint; to be used to trigger placement of tick mark lineCheck = (LineStyleGetDistanceTo(3) * 0.5) - dashSize; ######################## Process ########################### # Set line color and width LineStyleSetColor(red,green,blue); LineStyleSetLineWidth(width); # initialize flag indicating if arrow symbol has been drawn yet arrowDrawn = 0; # Draw dashed fold line and crossing symbols LineStyleRollPen(dashSize); # start line with dash while (LineStyleRoll(halfDash) != 1) { # while not at end of line roll length of half dash # draw crossing symbol when absolute position along line (in object units) # passes the check location near midpoint and set flag to indicate it has been drawn if ( LineStyleGetPosition(1) > lineCheck && arrowDrawn == 0 ) { # Draw dashed line through crossing symbol LineStyleRollPen(halfDash); LineStyleDropAnchor(1); LineStyleRollPen(halfDash); # Draw crossing lines LineStyleMoveToAnchor(1); LineStyleLineTo(90, halfSize ); LineStyleMoveToAnchor(1); LineStyleLineTo(-90, halfSize ); arrowDrawn = 1; } else { LineStyleRollPen(dashSize) } }