{
  "$type": "site.standard.document",
  "description": "[Object] To display a 3D map representing a feature that cannot be visually recognized such as an underground structure without a sense of discomfort. [Solution] With respect to features stored in the map database, an underground structure such as a tunnel are classified into a transmissive object…",
  "path": "/patents/939634",
  "publishedAt": "2016-08-03T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C21/3635",
    "GEO TECHNICAL LAB CO LTD [JP]"
  ],
  "textContent": "[Object] To display a 3D map representing a feature that cannot be visually recognized such as an underground structure without a sense of discomfort. [Solution] With respect to features stored in the map database, an underground structure such as a tunnel are classified into a transmissive object, and other features into a non-transmissive object. Then, a transmissive object and a non-transmissive object are projected individually so as to generate a transmissive object projection view and a non-transmissive object projection view. The transmissive object projection view thus obtained is superposed on the non-transmissive object projection view with adjusted transmittance. Making the transmissive object to be transmissive and superposing it enables to realize a map that appears to the user as if a ground surface or a feature which has shielded the transmissive object is made to be transmissive whereby the transmissive object come to be visible.",
  "title": "THREE-DIMENSIONAL-MAP DISPLAY SYSTEM"
}