... text of the units. In the example below, two different distance objects are instantiated in units of kilometers ( km ) and miles ( mi ): >>> from django.contrib.gis.measure import D , Distance >>> d1 = Distance ( km = 5 ) >>> print ( d1 ) 5.0 km >>> d ... には、変換された距離の量を取得するために好ましい単位属性にアクセスします: >>> print ( d1 . mi ) # Converting 5 kilometers to miles 3.10685596119 >>> print ( d2 . km ) # Converting 5 miles to kilometers 8.04672 また、距離オブジェクト間で算術演算を行うこと ... もできます: >>> print ( d1 + d2 ) # Adding 5 miles to 5 kilometers 13.04672 km >>> print ( d2 - d1 ) # Subtracting 5 kilometers from 5 miles 1.89314403881 mi Distance オブジ ... ... text of the units. In the example below, two different distance objects are instantiated in units of kilometers ( km ) and miles ( mi ): >>> from django.contrib.gis.measure import D , Distance >>> d1 = Distance ( km = 5 ) >>> print ( d1 ) 5.0 km >>> d ... には、変換された距離の量を取得するために好ましい単位属性にアクセスします: >>> print ( d1 . mi ) # Converting 5 kilometers to miles 3.10685596119 >>> print ( d2 . km ) # Converting 5 miles to kilometers 8.04672 また、距離オブジェクト間で算術演算を行うこと ... もできます: >>> print ( d1 + d2 ) # Adding 5 miles to 5 kilometers 13.04672 km >>> print ( d2 - d1 ) # Subtracting 5 kilometers from 5 miles 1.89314403881 mi Distance オブジ ... ... a great circle . [ 4 ] Thus, additional computation is required to obtain distances in planar units (e.g., kilometers and miles). Using a geographic coordinate system may introduce complications for the developer later on. For example, SpatiaLite doe ... calculations between geometries using geographic coordinate systems, e.g. constructing a query to find all points within 5 miles of a county boundary stored as WGS84. [ 5 ] Portions of the earth's surface may projected onto a two-dimensional, or Carte ... ... a great circle . [ 4 ] Thus, additional computation is required to obtain distances in planar units (e.g., kilometers and miles). Using a geographic coordinate system may introduce complications for the developer later on. For example, SpatiaLite doe ... calculations between geometries using geographic coordinate systems, e.g. constructing a query to find all points within 5 miles of a county boundary stored as WGS84. [ 5 ] Portions of the earth's surface may projected onto a two-dimensional, or Carte ... ... ed. >>> qs = SouthTexasCity . objects . filter ( point__distance_lte = ( pnt , 7000 )) # Find all Cities within 7 km, > 20 miles away, and > 100 chains away (an obscure unit) >>> qs = SouthTexasCity . objects . filter ( point__distance_lte = ( pnt , D ... ... ject, you can easily express the value in the units of your choice. For example, city.distance.mi is the distance value in miles and city.distance.km is the distance value in kilometers. See 測定オブジェクト for usage details and the list of サポートさ ... ... ed. >>> qs = SouthTexasCity . objects . filter ( point__distance_lte = ( pnt , 7000 )) # Find all Cities within 7 km, > 20 miles away, and > 100 chains away (an obscure unit) >>> qs = SouthTexasCity . objects . filter ( point__distance_lte = ( pnt , D ... ... ject, you can easily express the value in the units of your choice. For example, city.distance.mi is the distance value in miles and city.distance.km is the distance value in kilometers. See 測定オブジェクト for usage details and the list of サポートさ ... 2026年10月08日