CALCULATION OF CENTRAL JAVA PROVINCE REGION AREA USING SHOELACE FORMULA BASED ON THE GADM DATABASE
This study proposes the use of the shoelace formula to determine the area of the regencies and towns/cities in the province of Central Java, which is based on the boundaries of the cities, regencies, (sub-) districts, and villages using the database from the GADM (Global Administrative Area). The re...
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Universitas Pattimura
2022-06-01
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| Series: | Barekeng |
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| Online Access: | https://ojs3.unpatti.ac.id/index.php/barekeng/article/view/5263 |
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| author | Adi Setiawan Eko Sediyono Tundjung Mahatma |
| author_facet | Adi Setiawan Eko Sediyono Tundjung Mahatma |
| author_sort | Adi Setiawan |
| collection | DOAJ |
| description | This study proposes the use of the shoelace formula to determine the area of the regencies and towns/cities in the province of Central Java, which is based on the boundaries of the cities, regencies, (sub-) districts, and villages using the database from the GADM (Global Administrative Area). The results obtained are then compared with the Karney polygon method. With the shoelace formula, the area of Central Java province is 34365.40 km2 (4.77% wider than the reference area), while the Karney polygon method yields 34379.48 km2 (4.81% wider than the reference area). The area calculated using the boundaries of sub-districts is closer to the reference area if compared to using the boundaries of the regencies/cities and of villages. MdAPE values of 6.46 % and 6.54 % are obtained using the shoelace formula and the Karney polygon method respectively. |
| format | Article |
| id | doaj-art-44833eae2bb84a9baf80715bd8fdbfb6 |
| institution | Kabale University |
| issn | 1978-7227 2615-3017 |
| language | English |
| publishDate | 2022-06-01 |
| publisher | Universitas Pattimura |
| record_format | Article |
| series | Barekeng |
| spelling | doaj-art-44833eae2bb84a9baf80715bd8fdbfb62025-08-20T03:37:35ZengUniversitas PattimuraBarekeng1978-72272615-30172022-06-0116259760610.30598/barekengvol16iss2pp597-6065263CALCULATION OF CENTRAL JAVA PROVINCE REGION AREA USING SHOELACE FORMULA BASED ON THE GADM DATABASEAdi Setiawan0Eko Sediyono1Tundjung Mahatma2Department of Mathematics, Faculty of Science and Mathematics, Universitas Kristen Satya WacanaDepartment of Mathematics, Faculty of Science and Mathematics, Universitas Kristen Satya WacanaFaculty of Information Technology, Universitas Kristen Satya WacanaThis study proposes the use of the shoelace formula to determine the area of the regencies and towns/cities in the province of Central Java, which is based on the boundaries of the cities, regencies, (sub-) districts, and villages using the database from the GADM (Global Administrative Area). The results obtained are then compared with the Karney polygon method. With the shoelace formula, the area of Central Java province is 34365.40 km2 (4.77% wider than the reference area), while the Karney polygon method yields 34379.48 km2 (4.81% wider than the reference area). The area calculated using the boundaries of sub-districts is closer to the reference area if compared to using the boundaries of the regencies/cities and of villages. MdAPE values of 6.46 % and 6.54 % are obtained using the shoelace formula and the Karney polygon method respectively.https://ojs3.unpatti.ac.id/index.php/barekeng/article/view/5263shoelace formulaglobal administrative areas (gadm)universal transverse mercator (utm)mdape (median absolute percentage error) |
| spellingShingle | Adi Setiawan Eko Sediyono Tundjung Mahatma CALCULATION OF CENTRAL JAVA PROVINCE REGION AREA USING SHOELACE FORMULA BASED ON THE GADM DATABASE Barekeng shoelace formula global administrative areas (gadm) universal transverse mercator (utm) mdape (median absolute percentage error) |
| title | CALCULATION OF CENTRAL JAVA PROVINCE REGION AREA USING SHOELACE FORMULA BASED ON THE GADM DATABASE |
| title_full | CALCULATION OF CENTRAL JAVA PROVINCE REGION AREA USING SHOELACE FORMULA BASED ON THE GADM DATABASE |
| title_fullStr | CALCULATION OF CENTRAL JAVA PROVINCE REGION AREA USING SHOELACE FORMULA BASED ON THE GADM DATABASE |
| title_full_unstemmed | CALCULATION OF CENTRAL JAVA PROVINCE REGION AREA USING SHOELACE FORMULA BASED ON THE GADM DATABASE |
| title_short | CALCULATION OF CENTRAL JAVA PROVINCE REGION AREA USING SHOELACE FORMULA BASED ON THE GADM DATABASE |
| title_sort | calculation of central java province region area using shoelace formula based on the gadm database |
| topic | shoelace formula global administrative areas (gadm) universal transverse mercator (utm) mdape (median absolute percentage error) |
| url | https://ojs3.unpatti.ac.id/index.php/barekeng/article/view/5263 |
| work_keys_str_mv | AT adisetiawan calculationofcentraljavaprovinceregionareausingshoelaceformulabasedonthegadmdatabase AT ekosediyono calculationofcentraljavaprovinceregionareausingshoelaceformulabasedonthegadmdatabase AT tundjungmahatma calculationofcentraljavaprovinceregionareausingshoelaceformulabasedonthegadmdatabase |