Dotted ground feature element symbol display method and device

The invention discloses a point-shaped ground feature element symbol display method and device, and solves the problem of combining various primitives into point-shaped ground feature symbols and displaying the point-shaped ground feature symbols. The point-like surface feature element symbol displa...

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Bibliographische Detailangaben
Hauptverfasser: WU QIANG, CHEN XIAGONG, BAI LISHUN, ZHANG YU, WANG HUIZHU
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a point-shaped ground feature element symbol display method and device, and solves the problem of combining various primitives into point-shaped ground feature symbols and displaying the point-shaped ground feature symbols. The point-like surface feature element symbol display method comprises the following steps: acquiring a data cluster of point symbols; determining a first coordinate point; the first coordinate point is the display position of the point symbol; and the dynamic control code calls at least one part of the primitive data in the primitive group and displays the at least one part of the primitive data to form a graph of the point symbol. According to the method and the device, a point symbol can be combined and expressed by a plurality of modes such as primitives and character annotations, namely, a plurality of symbol styles are actually displayed by one point; the position of a positioning point of a point symbol is expressed according to any regular position of the sy