Topic: mapa
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Shadow and slope analysis before you design
How we calculate the shadow cast by terrain, buildings and trees at each hour and season, and how a slope map shows where you can build on a plot.
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Drainage networks: why point density changes the result
How the drainage network of a hillside is calculated from the terrain model, and what changes from 0.5 to 5 points per m², with an example in Xàbia (Jávea).
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Viewshed analysis: what can be seen from a point
What a viewshed is, how it is calculated with a terrain model and what it is used for on the coast: landscape integration, siting a house or anticipating its views.
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Orthophoto, DTM, DEM and contour lines explained
What makes an orthophoto different from an aerial photo, a DTM from a DSM, and what contour lines are for, with a large hillside site in Xàbia (Jávea).
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3D terrain modelling with digital terrain models
3D terrain modelling helps optimise the territory, reduce costs and maximise returns. Ask Clotoides, land surveyors in Xàtiva and Xàbia, for advice.
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Structural monitoring: what it is and what it is for
Structural monitoring (auscultación) by Clotoides land surveyors detects deformation, movement and cracking in a construction before it is too late.
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Survey coordinates: UTM, ETRS89 and geographic
What UTM and geographic coordinates are, what zone 30 and ETRS89 mean, how to convert between them and when the Cadastre asks for them. With an example near Xàtiva.
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Construction control and volume calculation
At Clotoides we specialise in construction control: volume calculations and monitoring surveys to track each stage of the works and justify monthly certifications.
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Cartography in Spain: from ED50 to ETRS89
Cartography in Spain: how mapping has evolved from the ED50 reference system to ETRS89, and why Clotoides transforms maps to meet Spanish and European rules.
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Topography in agriculture: land surveying in farming
Topography in modern agriculture helps farmers understand the land and design efficient cropping systems: irrigation, crop selection, terraces and fertiliser.
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Topography for architecture: point clouds and BIM
Clotoides uses advanced surveying techniques for architecture, making a difference and maximising a project's chances of success: 3D point clouds, modelling and BIM.
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Topography in construction: how terrain shapes a project
With a survey and a digital terrain model you can plan construction on solid data. Foundations, structure, drainage and landscaping all depend on the terrain.
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GML file and georeferencing for the Spanish Cadastre
Clotoides prepares the GML file and the georeferencing required to obtain the graphic validation report and update your parcel in the Spanish Cadastre.
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Landscape integration study: the territorial analysis
We use advanced techniques for collecting and processing territorial information to prepare the analysis behind a landscape integration study.
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How to choose a land surveying company: what to look for
How to choose a land surveying company: Clotoides explains what to consider, from equipment and services to prices, customer service, licences and insurance.
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Topographic survey for construction: why it matters
A topographic survey fixes the base of a building or structure with precision. Plan, assess risks, meet legal requirements and avoid unnecessary extra costs.
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Certificate of completion of works: why it matters
Certificate of completion of works (certificado final de obra): how a topographic survey by Clotoides helps you complete the paperwork for a new build.
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Topographic data sources: imagery, orthophotos, open data
An overview of the main sources of geopositioning and topographic data: satellite imagery, orthophotos, spatial data infrastructures and open data.
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GML file for the Cadastre: what it is and how it works
What a GML file is, why the Cadastre asks for it, what it contains, in which formats a surveyor delivers it and which programs open it.
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Land surveying tools: software and file formats
Topographic surveys, plot measurement and setting out on site require a command of a set of land surveying tools: CAD, GIS and file formats such as CSV and GML.
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Surveying equipment: total station, GNSS and drone
Which instruments a surveyor uses: total station, GNSS RTK, level, drone and LiDAR. What each one measures and when it is used on a real job.
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Land surveyor in Xàtiva: what is measured in la Costera
Land surveying in Xàtiva: what we measure in la Costera to define boundaries, areas and the exact position of buildings.
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Georeferenced plot measurement: an introduction
What georeferenced plot measurement is, what it is for in procedures with the authorities and which topics this land surveying blog covers.
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Notary, Land Registry and Cadastre: who does what
Clotoides prepares the technical reports the notary needs to coordinate the information held by the Land Registry (Registro de la Propiedad) and the Cadastre.
Tell us about your case
Do you have a similar case?
Tell us about it with the cadastral reference. We will look at it, tell you what work is needed and prepare a quote.
- Xàtiva
- C/ Ballesters Navarresos, 7 · 46800 Xàtiva
- Xàbia
- C/ Ausiàs March, 2 · 03730 Xàbia
- or write to
- hola@clotoides.com