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Project-OSRM / osrm-backend

Open Source Routing Machine - C++ backend
http://map.project-osrm.org
BSD 2-Clause "Simplified" License
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different distance coordinates / polyline #5550

Closed DariuszFe closed 2 weeks ago

DariuszFe commented 4 years ago

Hi,

While working using your solution we have noticed a distance discrepancy between the query with coordinates sent to the server and a query with polyline format.

Source of both data is a below command:

http://router.project-osrm.org/route/v1/driving/22.585597410804,54.0798811;22.4273305708015,54.0475821?continue_straight=default&overview=simplified&steps=false&alternatives=false&geometries=polyline

aoaiIwfzhC~@vKvIjXfDrc@cCrk@tDzmAzSdcAzOYnK~c@zZdn@vIje@dBt]zErVn@Z}Ar@~Etn@rKp[aa@r]gAhKlShNrUzh@pPpPQvC~r@gI}HvoApChg@yQ`xAcEvz@

Polyline decoder shows a correct route, but the distance reported is significantly different.

Please advise what is the reason for this discrepancy and how can we avoid this issue.

Coordinates

http://router.project-osrm.org/route/v1/driving/22.585597410804,54.0798811;22.4273305708015,54.0475821?continue_straight=default&overview=simplified&steps=false&alternatives=false&geometries=polyline

{"code":"Ok","waypoints":[{"hint":"PPlsgPaceoJkAAAANQAAAEYAAADbAwAA0LDeQnbLa0J_2JpCxtTJRGQAAAA1AAAARgAAANsDAABkjQAA1KBYAQUyOQP9oFgBiTE5AwMAPxArj_Sd","distance":14.060646,"location":[22.585556,54.080005],"name":""},{"hint":"ss9sgzZBQYUXAAAALwAAADwAAAAAAAAAWXQ_Qlw3kUJPaPBCAAAAABcAAAAvAAAAPAAAAAAAAABkjQAAHDdWAZG0OAPDNlYBXrM4AwEAPwYrj_Sd","distance":34.665362,"location":[22.42742,54.047889],"name":""}],"routes":[{"legs":[{"steps":[],"weight":768.3,"distance":13472.1,"summary":"","duration":768.3}],"weight_name":"routability","geometry":"aoaiIwfzhC~@vKvIjXfDrc@cCrk@tDzmAzSdcAzOYnK~c@zZdn@vIje@dBt]zErVn@Z}Ar@~Etn@rKp[aa@r]gAhKlShNrUzh@pPpPQvC~r@gI}HvoApChg@yQ`xAcEvz@","weight":768.3,"distance":13472.1,"duration":768.3}]}

"distance":13472.1,

Polyline

http://router.project-osrm.org/route/v1/driving/polyline(aoaiIwfzhC~@vKvIjXfDrc@cCrk@tDzmAzSdcAzO%60YnK~c@zZdn@vIje@dBt]zErVn@%60Z%7DAr%60@~Etn@rKp[aa@r]gAhKlShNrUzh@pPpP%60QvC~r@gI%7DHvoApChg@yQ%60xAcEvz@)?continue_straight=default&overview=simplified&steps=false&alternatives=false&geometries=polyline

{"code":"Ok","waypoints":[{"hint":"PPlsgPaceoJjAAAANgAAAEYAAADbAwAAZOvdQlFWbUJ_2JpCxtTJRGMAAAA2AAAARgAAANsDAABkjQAA2qBYAQUyOQPYoFgBCjI5AwMAPxArj_Sd","distance":0.571729,"location":[22.585562,54.080005],"name":""},{"hint":"PPlsgPaceoIQAAAAAAAAABYBAACUAwAAkwiNQQAAAADmy5pDm-S_RBAAAAAAAAAAFgEAAJQDAABkjQAA3phYAc4wOQPgmFgByjA5AwcALw8rj_Sd","distance":0.464079,"location":[22.583518,54.079694],"name":""},{"hint":"PPlsgPaceoIJAAAAAQAAAEECAABvAgAAIA43QfoPhj2oDSFE2dSWRAkAAAABAAAAQQIAAG8CAABkjQAABYlYARAqOQMEiVgBEio5Aw8Afw8rj_Sd","distance":0.23204,"location":[22.579461,54.077968],"name":""},{"hint":"PPlsgPaceoIAAAAACAAAACYDAACMAQAAAAAAACeeh0HwWoNEnKRGRAAAAAAIAAAAJgMAAIwBAABkjQAAHXJYAc0mOQMgclgByiY5AxYAXxArj_Sd","distance":0.387388,"location":[22.573597,54.077133],"name":""},{"hint":"PPlsgPaceoIJAAAAAQAAAAgEAACoAAAA60mfQfoPhj6QR7xEfPqnQwkAAAABAAAACAQAAKgAAABkjQAAPFZYAWApOQM8VlgBXik5AyIA_xArj_Sd","distance":0.222615,"location":[22.56646,54.077792],"name":""},{"hint":"NYNxgviceoJMAAAAAQAAAG8FAAD3AAAA8PUaQwAAAADz_y1F1bH4Q0wAAAABAAAAbwUAAPcAAABkjQAA9CRYAcwlOQPwJFgB0CU5AyMA_wMrj_Sd","distance":0.516517,"location":[22.553844,54.076876],"name":""},{"hint":"NYNxgviceoIAAAAACwAAACsEAAB9AgAAAAAAANzYsUG5UgVFQh6gRAAAAAALAAAAKwQAAH0CAABkjQAAT_pXAccYOQNS-lcBxBg5Ax4AXwMrj_Sd","distance":0.387388,"location":[22.542927,54.073543],"name":""},{"hint":"NYNxgviceoIAAAAAfgAAAGADAADVAgAAVv2XPkB9e0PL1ddEJzy2RAAAAAB-AAAAYAMAANUCAABkjQAADepXATYOOQMI6lcBOA45AxsAnwIrj_Sd","distance":0.395832,"location":[22.538765,54.070838],"name":""},{"hint":"NYNxgviceoI2AAAAAQAAAEgCAAA0BAAAwN_bQgAAAABjC5JE3uAGRTYAAAABAAAASAIAADQEAABkjQAA59JXAWkGOQPo0lcBaAY5Aw4AzwIrj_Sd","distance":0.129129,"location":[22.532839,54.068841],"name":""},{"hint":"NYNxgviceoIRAAAAAQAAAA4BAACTBQAAgF4PQjOskT7QTwdEl68yRREAAAABAAAADgEAAJMFAABkjQAAabVXAf30OANqtVcB_PQ4AwgA3wMrj_Sd","distance":0.129129,"location":[22.525289,54.064381],"name":""},{"hint":"NYNxgviceoIAAAAAHwAAAEIAAABSBgAAAAAAAIvld0Id6QNDZadKRQAAAAAfAAAAQgAAAFIGAABkjQAAbp1XAUbuOANunVcBRO44AwQALwQrj_Sd","distance":0.222615,"location":[22.51915,54.062662],"name":""},{"hint":"ay9OgjSDcYIAAAAADQAAAM4AAABUAAAA9xdJPnX8zkFmDs5D7dYoQwAAAAANAAAAzgAAAFQAAABkjQAAQIpXAUbsOANAilcBRuw4AwkA3wQrj_Sd","distance":0,"location":[22.51424,54.06215],"name":""},{"hint":"ay9OgjSDcYIAAAAADgAAAEMAAADeAAAAAAAAAMdp30FtWgdDXt7dQwAAAAAOAAAAQwAAAN4AAABkjQAAf3tXAfbnOAN8e1cB-uc4AwMAbwQrj_Sd","distance":0.486616,"location":[22.510463,54.061046],"name":""},{"hint":"bS9OgmZkcYQAAAAADAAAAEsAAABUAgAA-g-GPrgeukG5ZRVD8B2KRAAAAAAMAAAASwAAAFQCAABkjQAAkmpXAQnnOAOSalcBCuc4AwIADxErj_Sd","distance":0.111307,"location":[22.50613,54.060809],"name":""},{"hint":"bS9OgmZkcYQJAAAAAQAAAPUAAACsAQAAKEqeQfcXST6Zi_RDkjJARAkAAAABAAAA9QAAAKwBAABkjQAAkFVXAdvoOAOOVVcB4Og4Aw4ALxArj_Sd","distance":0.571729,"location":[22.500752,54.061275],"name":""},{"hint":"bS9OgmZkcYQAAAAAAwAAAAICAACmAAAAiKrKPjJCukDmW4BEF8Z0QwAAAAADAAAAAgIAAKYAAABkjQAAvzdXAYHkOAPAN1cBgOQ4AxsALw8rj_Sd","distance":0.129129,"location":[22.493119,54.060161],"name":""},{"hint":"flsnhIFbJ4QSAAAAAQAAAAAAAAAVAAAARitTQfcXST4AAAAAI-5uQRIAAAABAAAAAAAAABUAAABkjQAA5SVXAZfcOAPmJVcBnNw4AwAAXxErj_Sd","distance":0.560374,"location":[22.488549,54.058135],"name":""},{"hint":"f1snhNksMIQAAAAABwAAAFIBAAAKAAAAfmbvPpFtWkGDHClEKQCkQQAAAAAHAAAAUgEAAAoAAABkjQAAwRJXAeXxOAPCElcB5vE4AwYAvxMrj_Sd","distance":0.129129,"location":[22.483649,54.063589],"name":""},{"hint":"XD0mgwNJMoQFAAAAAQAAAAAAAAAAAAAAUi4zQVQD0T4AAAAAAAAAAAUAAAABAAAAAAAAAAAAAABkjQAAEQtXAVDzOAMQC1cBTvM4AwAAnxErj_Sd","distance":0.23204,"location":[22.481681,54.063952],"name":""},{"hint":"BEkyhP_38AAAAAIgAAAAEBAABtBQAAIUPZPuEZVUKEFshDFoEHRQAAAAAiAAAAAQEAAG0FAABkjQAAfQFXAYjmOAN-AVcBiOY4AwYArw0rj_Sd","distance":0.06546,"location":[22.479229,54.06068],"name":""},{"hint":"BEkyhP___38AAAAAIwAAAH8CAADuAwAAAAAAAIe8V0KwYXlEdE_ERAAAAAAjAAAAfwIAAO4DAABkjQAAVudWAWHYOANS51YBZNg4Aw8Azw0rjSd","distance":0.42434,"location":[22.472534,54.057057],"name":""},{"hint":"BEkyhP38AAAAAIgAAAGgDAAAGAwAA0ZttPiTXUkLWTapEM9KWRAAAAAAiAAAAaAMAAAYDAABkjQAAVdxWAWrNOANY3FYBas04AxcATwwrj_Sd","distance":0.19638,"location":[22.469717,54.05425],"name":""},{"hint":"BEkyhP_38AAAAAHwAAADoEAAA3AgAAKfXjPUktQUK7MtNE9fxcRAAAAAAfAAAAOgQAADcCAABkjQAAYtlWASDCOANg2VYBIMI4Ax4ADwsrjSd","distance":0.13092,"location":[22.468962,54.05136],"name":""},{"hint":"AkkyhP38AAAAAegAAAAAAAABCBQAAq_TjPWodPUMAAAAARBgDRQAAAAB6AAAAAAAAAEIFAABkjQAAyd9WAaChOAPI31YBoKE4AwAA3worj_Sd","distance":0.065539,"location":[22.470601,54.04304],"name":""},{"hint":"X8CehITonIUIAAAAAQAAAGgAAAApAQAAhtORQTQ5Bj6a2k9DMUYPRAgAAAABAAAAaAAAACkBAABkjQAAUK1WAdmnOANQrVYB1qc4AwMAjwUrj_Sd","distance":0.33392,"location":[22.45768,54.044633],"name":""},{"hint":"gyAxg17AnoQAAAAACAAAADkAAACRAAAAgcenPmJaL0F23uNCHApDQwAAAAAIAAAAOQAAAJEAAABkjQAAH5RWAf-kOAMelFYB_KQ4AwIAPwYrj_Sd","distance":0.34029,"location":[22.451231,54.043903],"name":""},{"hint":"NUFBhXoZQoUAAAAACgAAABgBAABIAQAAnDGxPps9oUGtywxEA50kRAAAAAAKAAAAGAEAAEgBAABkjQAAdVxWAb-wOAN0XFYBvrA4AwYAvwYrj_Sd","distance":0.129168,"locat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"distance":18058.3,

Kind regards

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