Drawing Problems - Chapter 1 Index - Advanced 576 AutoCAD and Its Applications—Advanced Copyright Goodheart-Willcox Co., Inc. surface model, 237 surface modeling, 15, 237–264 blend surfaces, 245–247 extending surfaces, 253 fi llet surfaces, 251–252 network surfaces, 242–244 NURBS surfaces, 256–259 offsetting surfaces, 250–251 patch surfaces, 247–250 projected geometry, 254–255 trimming, 253–256 SURFACEMODELINGMODE system variable, 132, 138–139, 238–239, 256–258 surfaces converting objects to surfaces, 260 editing using grips, 275 extracting curves, 262–264 trimming, 253–256 using to sculpt solids, 261–262 surface smoothness, controlling, 419–420 SURFBLEND command, 245, 249 SURFEXTEND command, 245, 253 SURFEXTRACTCURVE command, 259, 262–264, 326 SURFFILLET command, 245, 249, 251–252 SURFNETWORK command, 242 SURFOFFSET command, 245, 250–251 SURFPATCH command, 245, 247–250 SURFSCULPT command, 259, 261 SURFTRIM command, 253–255, 264 SURFU system variable, 34, 242, 244 SURFV system variable, 34, 242 sweep, 153 SWEEP command, 40–41, 134–135, 153–156, 238, 256, 271 swept objects, 153–158 base point, 155 creating surfaces and solids, 153–158 scaling, 156 twisting, 156–157 system variables ANNOMONITOR, 366 CAMERADISPLAY, 551 CAMERAHEIGHT, 551 CVPORT, 120–121 DELOBJ, 41, 134, 218, 240, 261 DIMASSOC, 366 DISPSILH, 33, 418–419, 423 DYNPICOORDS, 92 FACETERDEVNORMAL, 218 FACETERDEVSURFACE, 218 FACETERGRIDRATIO, 218 FACETERMAXEDGELENGTH, 219 FACETERMESHTYPE, 218 FACETRES, 390, 418–420, 424 FILLETRAD3D, 251 GTAUTO, 182 GTDEFAULT, 282 GTLOCATION, 182 HALOGAP, 424 INTERSECTIONCOLOR, 424 INTERSECTIONDISPLAY, 424 ISOLINES, 418–419, 423, 428 LIGHTINGUNITS, 486 LINESMOOTHING, 420 LOFTNORMALS, 163–164 MAXACTVP, 115 NAVSWHEELMODE, 63 NAVSWHEELOPACITYBIG, 72 NAVSWHEELOPACITYMINI, 72 NAVSWHEELSIZEBIG, 72 NAVSWHEELSIZEMINI, 72 NAVVCUBELOCATION, 60 NAVVCUBEOPACITY, 60 NAVVCUBEORIENT, 61 NAVVCUBESIZE, 60 OBSCUREDCOLOR, 423 OBSCUREDLTYPE, 423 PDMODE, 83 PICKFIRST, 294 PREVIEWCREATIONTRANSPARENCY, 249 PSOLHEIGHT, 28 PSOLWIDTH, 28 SELECTIONCYCLING, 176 SHOWHIST, 174 SMOOTHMESHCONVERT, 220 SMOOTHMESHMAXLEV, 222 SOLIDHIST, 174–176 SPLINESEGS, 424 STEPSIZE, 556 STEPSPERSEC, 556 SUBOBJSELECTIONMODE, 224 SURFACEASSOCIATIVITY, 134, 138–139, 238–240, 256 SURFACEAUTOTRIM, 255 SURFACEMODELINGMODE, 132, 138–139, 238–239, 256–258 SURFU, 34, 242, 244 SURFV, 34, 242 UCSAXISANG, 106 UCSBASE, 106 UCSDETECT, 96, 106 UCSFOLLOW, 106–107, 126–128 UCSNAME, 106 UCSORG, 106 UCSORTHO, 106 UCSSELECTMODE, 89, 106 UCSVIEW, 106 UCSVP, 106–107, 126–128 UCSXDIR, 106 UCSYDIR, 106 VIEWUPDATEAUTO, 349–350, 352, 362 VSBACKGROUNDS, 428 VSEDGECOLOR, 428 VSEDGEJITTER, 430 VSEDGELEX, 430 VSEDGES, 428 VSEDGESMOOTH, 430 VSFACECOLORMODE, 427 VSFACEHIGHLIGHT, 428 VSFACEOPACITY, 427