ÔÚArcGISÖÐÓÃÕ¤¸ñתACSIIÃüÁDEMתΪASCIIÎļþÖ®ºó£¬ÔÚÉú³ÉµÄASCIIµÄTXTÎļþÖгöÏÖÁ˷dz£¶àµÄNodata£º-9999 ×Ö·û¡£µ«ÊÇÎÒÔÚArcGISÖаÑDEMµÄÊôÐÔ±í´ò¿ªºó²¢Ã»Óп´µ½ÓÐÎÞÖµÐÅÏ¢£¬Ñ¡ÖÐËùÓи߳ÌÖµ×ֶκó£¬DEMÔÚͼÏñÏÔ ...
»Ø¸´