#################################################################################################### # # Invoking X3D model self-test: # # $ python BathymetryGeneratorPrototype.py # # Python package x3d.py package is available on PyPI for import. # This approach simplifies Python X3D deployment and use. # https://pypi.org/project/x3d # # Installation: # pip install x3d # or # python -m pip install x3d # # Developer options for loading x3d package in other Python programs: # # from x3d import * # preferred approach, terser source that avoids x3d.* class prefixes # # or # import x3d # traditional way to subclass x3d package, all classes require x3d.* prefix, # # but python source is very verbose, for example x3d.Material x3d.Shape etc. # # X3dToPython.xslt stylesheet insertPackagePrefix=true supports this option. # # Project home page: # X3D Python Scene Access Interface Library (X3DPSAIL) # # https://www.web3d.org/x3d/stylesheets/python/python.html # Conversion generator: # https://www.web3d.org/x3d/stylesheets/X3dToPython.xslt # #################################################################################################### from x3d import * newModel=X3D(profile='Immersive',version='3.0', head=head( children=[ meta(content='BathymetryGeneratorPrototype.x3d',name='title'), meta(content='This prototype generates bathymetry based on the input data using IndexedFaceSet.',name='description'), meta(content='Don Brutzman, Jane Wu',name='creator'), meta(content='8 February 2002',name='created'), meta(content='28 November 2019',name='modified'), meta(content='bathymetry',name='subject'), meta(content='https://www.web3d.org/x3d/content/examples/Savage/Tools/Animation/BathymetryGeneratorPrototype.x3d',name='identifier'), meta(content='X3D-Edit 3.2, https://www.web3d.org/x3d/tools/X3D-Edit',name='generator'), meta(content='../../license.html',name='license')]), Scene=Scene( children=[ WorldInfo(title='BathymetryGeneratorPrototype.x3d'), ProtoDeclare(appinfo='BathymetryGenerator creates bottom topography',name='BathymetryGenerator', ProtoInterface=ProtoInterface( field=[ field(accessType='initializeOnly',name='positionArray',type='MFVec3f',value=[(0.0,0,0),(10,-4,0),(25,-6,0),(30,-8,5),(38,-15,5),(45,-18,5),(55,-22,5),(60,-25,15),(60,-27,22),(55,-30,35),(48,-35,35),(35,-35,35),(25,-45,35),(20,-55,35),(15,-70,35),(3,-70,35),(-5,-72,40),(-5,-75,50),(0,-80,55),(15,-75,55),(30,-70,55),(35,-60,55),(40,-50,55),(50,-34,55),(65,-23,70)]), field(accessType='initializeOnly',name='colorSchemeDepthRangeArray',type='MFVec2f',value=[(0,-10),(-10,-20),(-20,-30),(-30,-40),(-40,-50),(-50,-60),(-60,-70),(-70,-999999)]), field(accessType='initializeOnly',name='colorSchemeColorArray',type='MFColor',value=[(1,1,0.2),(0.6,1,1),(0,1,1),(0.2,0.6,0.2),(1,0,1),(0.56,0,0.32),(0.2,0.3,0.7),(0,0,1)]), field(accessType='initializeOnly',name='beamWidth',type='SFFloat',value=2), field(accessType='initializeOnly',name='traceEnabled',type='SFBool',value=False)]), ProtoBody=ProtoBody( children=[ Group( children=[ Transform(DEF='Bathymetry', children=[ Shape( geometry=IndexedFaceSet(DEF='BathymetryFaceSet',ccw=False, color=Color(DEF='BathymetryFaceColor'), coord=Coordinate(DEF='BathymetryFaceCoord'))), field=[ DEF='BathymetryScript', field=[ field(accessType='initializeOnly',name='positionArray',type='MFVec3f'), field(accessType='initializeOnly',name='depthRangeArray',type='MFVec2f'), field(accessType='initializeOnly',name='depthColorArray',type='MFColor'), field(accessType='initializeOnly',name='beamWidth',type='SFFloat'), field(accessType='outputOnly',name='bathyFaceCoordPoints',type='MFVec3f'), field(accessType='outputOnly',name='bathyCoordIndex',type='MFInt32'), field(accessType='outputOnly',name='bathyFaceColorArray',type='MFColor'), field(accessType='outputOnly',name='bathyColorIndex',type='MFInt32'), field(accessType='initializeOnly',name='traceEnabled',type='SFBool'), field(accessType='initializeOnly',appinfo='local variable',name='dataValid',type='SFBool',value=False), field(accessType='initializeOnly',appinfo='local variable',name='color',type='SFColor',value=(1,1,1)), field(accessType='initializeOnly',appinfo='local variable',name='leftPoint',type='SFVec3f',value=(0,0,0)), field(accessType='initializeOnly',appinfo='local variable',name='rightPoint',type='SFVec3f',value=(0,0,0))], IS=IS( connect=[ connect(nodeField='positionArray',protoField='positionArray'), connect(nodeField='depthRangeArray',protoField='colorSchemeDepthRangeArray'), connect(nodeField='depthColorArray',protoField='colorSchemeColorArray'), connect(nodeField='beamWidth',protoField='beamWidth'), connect(nodeField='traceEnabled',protoField='traceEnabled')]), sourceCode=""" ecmascript: function initialize() { dataValid = true; checkDataValidity(); if (!dataValid) return; tracePrint('positionArray.length = ' + positionArray.length); coordIndex = 0; colorIndex = 0; for (i = 0; i < positionArray.length; i++) { //determine the color for every position determineFaceColor(positionArray[i].y) bathyFaceColorArray[colorIndex++] = color; //determine the 'leftPoint' for every poistion -- For the first //position, use the first and second position. if (i == 0) { determineLeftPoint(positionArray[0], positionArray[1]); bathyFaceCoordPoints[coordIndex++] = leftPoint; determineRightPoint(positionArray[0], positionArray[1]); bathyFaceCoordPoints[coordIndex++] = rightPoint; } else { determineLeftPoint(positionArray[i], positionArray[i-1]); bathyFaceCoordPoints[coordIndex++] = leftPoint; determineRightPoint(positionArray[i], positionArray[i-1]); bathyFaceCoordPoints[coordIndex++] = rightPoint; } } tracePrint('bathyFaceCoordPoints = ' + bathyFaceCoordPoints); j = 0; for (i = 0; i < (positionArray.length - 1); i++) { bathyCoordIndex[j++] = i * 2; bathyCoordIndex[j++] = i * 2 + 1; bathyCoordIndex[j++] = i * 2 + 2; bathyCoordIndex[j++] = i * 2 + 3; bathyCoordIndex[j++] = -1; bathyCoordIndex[j++] = i * 2 + 3; bathyCoordIndex[j++] = i * 2 + 2; bathyCoordIndex[j++] = i * 2 + 1; bathyCoordIndex[j++] = i * 2; bathyCoordIndex[j++] = -1; } tracePrint('bathyCoordIndex = ' + bathyCoordIndex); } function checkDataValidity() { if (depthRangeArray.length != depthColorArray.length) { alwaysPrint(' colorSchemeDepthRangeArray must be the same length as colorSchemeColorArray'); dataValid = false; return; } } function determineFaceColor(depth) { for (j = 0; j < depthColorArray.length; j++) { if (depth <= depthRangeArray[j].x && depth >= depthRangeArray[j].y) { color = depthColorArray[j] return; } } color = null; return; } function determineLeftPoint(currPosition, prevPosition) { deltaX = currPosition.x - prevPosition.x; deltaZ = currPosition.z - prevPosition.z; theta = Math.atan2(deltaX, deltaZ); tracePrint('theta = ' + theta); leftPoint = new SFVec3f(currPosition.x + Math.cos(theta), currPosition.y, currPosition.z - Math.sin(theta) * (beamWidth / 2)); } function determineRightPoint(currPosition, prevPosition) { deltaX = currPosition.x - prevPosition.x; deltaZ = currPosition.z - prevPosition.z; theta = Math.atan2(deltaX, deltaZ); rightPoint = new SFVec3f(currPosition.x - Math.cos(theta), currPosition.y, currPosition.z + Math.sin(theta) * (beamWidth / 2)); } function alwaysPrint(string) { Browser.println ('[BathymetryGeneratorPrototype] ' + string); } function tracePrint(string) { if (traceEnabled) Browser.println ('[BathymetryGeneratorPrototype] ' + string); } """), ROUTE(fromField='bathyFaceCoordPoints',fromNode='BathymetryScript',toField='point',toNode='BathymetryFaceCoord'), ROUTE(fromField='bathyCoordIndex',fromNode='BathymetryScript',toField='set_coordIndex',toNode='BathymetryFaceSet'), ROUTE(fromField='bathyFaceColorArray',fromNode='BathymetryScript',toField='color',toNode='BathymetryFaceColor'), ROUTE(fromField='bathyColorIndex',fromNode='BathymetryScript',toField='set_colorIndex',toNode='BathymetryFaceSet')])])])), Comment(' ==================== '), Comment(' Example scene starts here, in case this prototype is examined. '), Anchor(description='BathymetryGeneratorExample',parameter=["target=_blank"],url=["BathymetryGeneratorExample.x3d","https://www.web3d.org/x3d/content/examples/Savage/Tools/Animation/BathymetryGeneratorExample.x3d","BathymetryGeneratorExample.wrl","https://www.web3d.org/x3d/content/examples/Savage/Tools/Animation/BathymetryGeneratorExample.wrl"], children=[ Shape( geometry=Text(string=["BathymetryGeneratorPrototype","is a prototype definition file","","Click this text to see","BathymetryGeneratorExample"], fontStyle=FontStyle(justify=["MIDDLE","MIDDLE"])), appearance=Appearance( material=Material(diffuseColor=(0.6,0.8,0.4))))])]) ) ### X3D model conversion complete ### #################################################################################################### # Self-test diagnostics #################################################################################################### print('Self-test diagnostics for BathymetryGeneratorPrototype.py:') if metaDiagnostics(newModel): # built-in utility method in X3D class print(metaDiagnostics(newModel)) # display meta info, hint, warning, error, TODO values in this model # print('check newModel.XML() serialization...') newModelXML= newModel.XML() # test export method XML() for exceptions during export newModel.XMLvalidate() # print(newModelXML) # diagnostic try: # print('check newModel.VRML() serialization...') newModelVRML=newModel.VRML() # test export method VRML() for exceptions during export # print(prependLineNumbers(newModelVRML)) # debug print("Python-to-VRML export of VRML output successful", flush=True) except Exception as err: # usually BaseException # https://stackoverflow.com/questions/18176602/how-to-get-the-name-of-an-exception-that-was-caught-in-python print("*** Python-to-VRML export of VRML output failed:", type(err).__name__, err) if newModelVRML: # may have failed to generate print(prependLineNumbers(newModelVRML, err.lineno)) try: # print('check newModel.JSON() serialization...') newModelJSON=newModel.JSON() # test export method JSON() for exceptions during export # print(prependLineNumbers(newModelJSON)) # debug print("Python-to-JSON export of JSON output successful (under development)") except Exception as err: # usually SyntaxError print("*** Python-to-JSON export of JSON output failed:", type(err).__name__, err) if newModelJSON: # may have failed to generate print(prependLineNumbers(newModelJSON,err.lineno)) print("python BathymetryGeneratorPrototype.py load and self-test diagnostics complete.")