NAD 27 kana WGS84 ???

Kunyangwe imwe nguva yapfuura Geographical Institutes muLatin America yakaita shanduko kune wGS84 official seyakajairwa fungidziro, shanduko padanho rekushandisa ikati zvishoma. Chaizvoizvo iyo fungidziro inogara iri cylindrical uye shanduko hairevi shanduko yeDatum pakati peNAD27 neNAD83, zvisinei izvo zvinorehwa zvinova zvakaomarara kupfuura kufambisa mepu yunifomu vector. Pakati pezvikonzero zvakakosha zvinokanganisa kusimudzira ndezvizvi zvinotevera:

1. Ruzhinji rwemavara ekare aripo munyika dzakawanda dzeEpanishe riri muNAD27, uye chigadzirwa chidiki chakagadzirwa mukufungidzira kutsva. Naizvozvo, chinhu chiri nyore hachisi kuomesa hupenyu hwako uye kushandisa ruzivo mune akawandisa mafomati.

2. Nezvinangwa zve "cartographic", zvinowanzosvibiswa kushandisa zvose zvese, chinhu chinokuvadza nokuti dzimwe nguva mashoko acho anova “painted mapa“. Nekudaro, isu isu vanoshanda kubva kumasiparati nzira, senge cadastre, iyo fungidziro yakakosha, kana iwe uchida kubata nomenclatures. cadastral key pasi pechirevo che quadrants; sezvo magridi ari maviri masisitimu akasiyana, izvo zvinoreva kuti kuzivikanwa kwenzvimbo kunoshanduka kana tikatama kubva kune imwe system kuenda kune imwe. Pamusoro pezvo, mazhinji matsva GPS haana ese sarudzo dzeNAD27 fungidziro.
2. Kuzvimirira izvo zviitiko zvehurumende Izvo zvinokanganiswa nekushaikwa kwehutungamiriri pachikamu chemasangano anodzora maererano nemifananidzo uye kuronga kwekushandiswa kwevhu. Kunyangwe shanduko yepamutemo kune fungidziro nyowani yave ichizivikanwa kwemakore mazhinji, mune dzimwe nguva zvishoma pane kutaura zvinodikanwa, sezvo panofanirwa kunge paine ma-inter-agency spatial data makomisheni anogona kudzora chikonzero nei fungidziro yakafanana yekutonga kwenyika. Kurasikirwa kwehutungamiri muzana remakore rapfuura, mushure mekunge mauto eUnited States adzikisira, kwaunza zvipingamupinyi zvikuru mune dzimwe nyika umo vakangogara nezvinyorwa zvakadhindwa kana mumhando dzakafanana, pasina kumhanyira kutamira kune unyanzvi hwekutsikisa. ruzivo maererano nenguva. .

3. Chokwadi chekuti masystem mazhinji emakombuta haana dambudziko mukati Dhiyabhorosi data pamusoro penguruve inoita kuti standardization isakurumidze. Zvisinei, hazvina kukwana kuramba, dzimwe nguva zvakakodzera kuti normalize mashoko, nokuti kakawanda chii chinoitwa kufambisa cartography yunifomu vector yemamita akawanda kuchamhembe uye vakawanda kumabvazuva, zvisinei, kushorwa. zvinoreva zvakawanda kupfuura izvozvo zvichienderana nechiyero uye kukosha kwedata.

Zvinokwanisika kumanikidzira kana kuita zvinhu zvishoma neGoogle Earth, heh heh iyo inodaro seinotevera:

• Kazhinji, iyo data iwe unotumira kune Google Earth zvakasikwa nehuwandu hwehuwandu hwehurumende hunoenderana nehuwandu hwezvinhu, hwakadai seChirungu cheMutambo weMutambo waMatator (UTM) uye a datum NAD27 (datum yeNorth America ye1927)

• Iye zvino, Google Earth haitsigire mafaira anoshandisa NAD83 kuratidzwa.