From b417b0b4dc8a4e6e64faddfef26642ee65109adb Mon Sep 17 00:00:00 2001 From: Paul RASCLE Date: Thu, 27 Aug 2020 09:30:21 +0200 Subject: [PATCH] fitShapePointsToMesh improvements: output directory, superposed extremity points --- src/HYDROTools/shapesGroups.py | 40 ++++++++++++++++++++++++---------- 1 file changed, 28 insertions(+), 12 deletions(-) diff --git a/src/HYDROTools/shapesGroups.py b/src/HYDROTools/shapesGroups.py index 298b29a0..8bcdd4d0 100644 --- a/src/HYDROTools/shapesGroups.py +++ b/src/HYDROTools/shapesGroups.py @@ -223,13 +223,14 @@ def exploreEdgeGroups(meshFile, outputDirectory="", offsetX=0., offsetY=0.): writeShapePoints(mcMesh, fullGrpName, nodeChains, outputDirectory, offsetX, offsetY) -def fitShapePointsToMesh(freeBorderShapefile, shapefileToAdjust, splitFreeBorder=True, splitShapeAdjusted=True): +def fitShapePointsToMesh(freeBorderShapefile, shapefileToAdjust, outputDirectory="", splitFreeBorder=True, splitShapeAdjusted=True): """ shapeFileToAdjust must be a closed line or polygon crossing freeBorderShapefile in 2 points. Find in shapeFileToAdjust and in freeBorderShapefile the two closest corresponding points and move the points in shapeFileToAdjust to correspond to the points found in freeBorderShapefile. Split shapeFileToAdjust in two parts (inside or outside freeBorder). If requested, split freeBorderShapefile in two parts. Same for shapeFileToAdjust. parameters: freeBorderShapefile: a set of free border lines, as generated by the functions freeBordersGroup and exploreEdgeGroups. shapefileToAdjust: a closed line or polygon, supposed to be drawn in qgis to pass as close as possible to the points to be connected, on the free border. + outputDirectory: if empty, write the resulting shapefiles in their respective directory, with the suffix '_adj', otherwise write in the outputDirectory. splitFreeBorder: boolean default True splitShapeAdjusted: boolean default True """ @@ -258,12 +259,23 @@ def fitShapePointsToMesh(freeBorderShapefile, shapefileToAdjust, splitFreeBorder pdist =[] x0 = -1.e30 y0 = -1.e30 + discountLastSftaPoint = 0 for i,p in enumerate(sfta.points): - d = math.sqrt((x0-p[0])*(x0-p[0]) + (y0-p[1])*(y0-p[1])) - x0 = p[0] + if i == 0: + x00 = p[0] # keep first point + y00 = p[1] + d = math.sqrt((x0-p[0])*(x0-p[0]) + (y0-p[1])*(y0-p[1])) # distance to previous point + x0 = p[0] # keep previous point y0 = p[1] if d < 1.e-5: - continue # do not take into account superposed points in shape to adjust + print("two consecutives points of shapefile To adjust are superposed, OK") + continue # do not take into account consecutive superposed points in shape to adjust + if i == len(sfta.points) -1: + d = math.sqrt((x00-p[0])*(x00-p[0]) + (y00-p[1])*(y00-p[1])) # distance between first and last point + if d < 1.e-5: + discountLastSftaPoint = 1 + print("last point of shapefile To adjust is superposed to first point, last point discarded, OK") + continue # do not take into account last point if superposed to first point, in shape to adjust dmin = 1.e30 jmin = -1 for j,pfb in enumerate(fbs.points): @@ -288,9 +300,11 @@ def fitShapePointsToMesh(freeBorderShapefile, shapefileToAdjust, splitFreeBorder # --- write the adusted shapefile: free border closest points replaced with corresponding points # on the free border. two polylines, one inside the domain, one outside - a = os.path.splitext(shapefileToAdjust) - shapefileAdjusted = a[0] + '_adj' + a[1] - chainName = os.path.basename(a[0]) + if outputDirectory == "": + outputDirectory = os.path.dirname(shapefileToAdjust) + a = os.path.splitext(os.path.basename(shapefileToAdjust)) + shapefileAdjusted = os.path.join(outputDirectory, a[0] + '_adj' + a[1]) + chainName = a[0] w = shapefile.Writer(shapefileAdjusted) w.shapeType = 3 @@ -308,7 +322,7 @@ def fitShapePointsToMesh(freeBorderShapefile, shapefileToAdjust, splitFreeBorder chaincoords = [] chaincoords.append(fbs.points[ifb2]) if i2+1 < len(sfta.points): - for i in range(i2+1, len(sfta.points)): + for i in range(i2+1, len(sfta.points) -discountLastSftaPoint): chaincoords.append(sfta.points[i]) for i in range(i1): chaincoords.append(sfta.points[i]) @@ -322,7 +336,7 @@ def fitShapePointsToMesh(freeBorderShapefile, shapefileToAdjust, splitFreeBorder chaincoords.append(sfta.points[i]) chaincoords.append(fbs.points[ifb2]) if i2+1 < len(sfta.points): - for i in range(i2+1, len(sfta.points)): + for i in range(i2+1, len(sfta.points) -discountLastSftaPoint): chaincoords.append(sfta.points[i]) for i in range(i1): chaincoords.append(sfta.points[i]) @@ -334,9 +348,11 @@ def fitShapePointsToMesh(freeBorderShapefile, shapefileToAdjust, splitFreeBorder if splitFreeBorder: # write the free border split in two polylines (cut by the adjusted shapefile) - a = os.path.splitext(freeBorderShapefile) - freeBorderSplit = a[0] + '_split' + a[1] - chainName = os.path.basename(a[0]) + if outputDirectory == "": + outputDirectory = os.path.dirname(freeBorderShapefile) + a = os.path.splitext(os.path.basename(freeBorderShapefile)) + freeBorderSplit = os.path.join(outputDirectory, a[0] + '_split' + a[1]) + chainName = a[0] w = shapefile.Writer(freeBorderSplit) w.shapeType = 3 -- 2.39.2