Mettre à jour un TIN (Outils 3D Analyst)

Résumé

Charge les données d’une ou plusieurs entités en entrée afin de modifier la surface d’un réseau triangulé irrégulier (TIN) existant.

En savoir plus sur le fonctionnement d’Edit TIN (Mettre à jour un TIN)

Illustration

Utilisation

Cet outil modifie le TIN en entrée. Vous pouvez utiliser l’outil Copy TIN (Copier TIN) pour disposer d’une sauvegarde si vous souhaitez conserver une version intacte du TIN source.
Le type d'entité de surface détermine dans quelle mesure les entités en entrée vont contribuer à la définition de la surface triangulée.
- Les entités ponctuelles peuvent être spécifiées en tant que points de masse, qui offrent des nœuds de données avec des valeurs z servant dans la triangulation de la surface.
- Les entités linéaires peuvent être spécifiées en tant que points de masse et lignes de fracture, qui représentent les emplacements le long d’une surface avec des discontinuités linéaires au niveau de la pente (par exemple, des lignes de crête, des lignes de rivage, des tronçons de chaussée, des emprises de bâtiment, etc.).
- Les entités surfaciques peuvent également être spécifiées en tant que points de masse et lignes de fracture, ainsi que les entités de découpage qui définissent la zone de données, remplacent les entités qui définissent les régions par des valeurs z constantes (des plans d’eau, par exemple) et effacent les entités qui indiquent des surfaces internes où aucune donnée n’est présente.
L’outil peut créer un TIN composé de plusieurs millions de points si la mémoire est suffisante. Limitez toutefois le nombre total de nœuds TIN à moins de 6 millions pour garantir la réactivité des performances d’affichage et une facilité d’utilisation. Si une surface TIN plus grande est requise, envisagez d’utiliser un [jeu de données de MNT] (../../help/data/terrain-dataset/terrain-dataset-in-arcgis-pro.md). Le jeu de données de MNT offre une surface TIN multi-résolutions qui peut prendre en charge des collections bien plus grandes de mesures source.

Etiqueter Explication Type de données

Etiqueter	Explication	Type de données
TIN en entrée	Jeu de données TIN à traiter.	TIN Layer
Définition d’une entité de surface	Entités en entrée et leurs propriétés associées qui définissent la manière dont ils sont ajoutés au TIN. Colonnes de la table de valeurs : Input Features—The features that will be added to the TIN. Height Field—The field from the input's attribute table that will provide the elevation for its features. The z- or m-values in the `Shape` field can be used along with any numeric field. Choosing the `<None>` option will result in the feature's elevation being interpolated from its surrounding 3D measurements. Tag Field—A numeric attribute will be assigned to the TIN's data elements using values obtained from an integer field in the input feature's attribute table. Type—The input feature's role in defining the TIN surface. The available options depend on the geometry of the input features. For line- and polygon-based surface feature types, the hard and soft designations for the surface feature type impact the way the line or polygon boundary is handled when interpolating a raster surface from the TIN dataset when using natural neighbor interpolation. A hard surface feature type represents a border with a sharp discontinuity in elevation, such as the edge of a cliff, a wall, or a curb on the side of the road. A soft surface feature type represents a border where the elevation is more smoothly defined. Mass Points—Elevation measurements will be incorporated as TIN nodes. Hard Line—Breakline features will define linear discontinuities in the TIN. Soft Line—Breakline features will define linear discontinuities in the TIN. Hard Clip—Polygon features will define the data area of the TIN surface. Soft Clip—Polygon features will define the data area of the TIN surface. Hard Erase—Polygon features will define interior voids in the data. Soft Erase—Polygon features will define interior voids in the data. Hard Replace—Polygon features will define areas of constant height. Soft Replace—Polygon features will define areas of constant height. Hard Value Fill—Integer attributes will be assigned to nodes and triangle faces. Soft Value Fill—Integer attributes will be assigned to nodes and triangle faces. Use Z—Specifies whether z- or m-values will be used when the `SHAPE` field is specified as the height source. Specifying `True` indicates that z-values will be used; specifying `False` indicates that m-values will be used.	Value Table
Delaunay sous contraintes (Facultatif)	Détermine la technique de triangulation qui sera utilisée le long des lignes de fracture du TIN. Activé—The TIN will use constrained Delaunay triangulation, which will add each segment as a single edge. Delaunay triangulation rules are honored everywhere except along breaklines, which will not be densified. Décoché—The TIN will use Delaunay conforming triangulation, which may densify each segment of the breaklines to produce multiple triangle edges. This is the default.	Boolean

TIN en entrée

Jeu de données TIN à traiter.

TIN Layer

Définition d’une entité de surface

Entités en entrée et leurs propriétés associées qui définissent la manière dont ils sont ajoutés au TIN.

Colonnes de la table de valeurs :

Input Features—The features that will be added to the TIN.
Height Field—The field from the input's attribute table that will provide the elevation for its features. The z- or m-values in the Shape field can be used along with any numeric field. Choosing the <None> option will result in the feature's elevation being interpolated from its surrounding 3D measurements.
Tag Field—A numeric attribute will be assigned to the TIN's data elements using values obtained from an integer field in the input feature's attribute table.
Type—The input feature's role in defining the TIN surface. The available options depend on the geometry of the input features. For line- and polygon-based surface feature types, the hard and soft designations for the surface feature type impact the way the line or polygon boundary is handled when interpolating a raster surface from the TIN dataset when using natural neighbor interpolation. A hard surface feature type represents a border with a sharp discontinuity in elevation, such as the edge of a cliff, a wall, or a curb on the side of the road. A soft surface feature type represents a border where the elevation is more smoothly defined.
- Mass Points—Elevation measurements will be incorporated as TIN nodes.
- Hard Line—Breakline features will define linear discontinuities in the TIN.
- Soft Line—Breakline features will define linear discontinuities in the TIN.
- Hard Clip—Polygon features will define the data area of the TIN surface.
- Soft Clip—Polygon features will define the data area of the TIN surface.
- Hard Erase—Polygon features will define interior voids in the data.
- Soft Erase—Polygon features will define interior voids in the data.
- Hard Replace—Polygon features will define areas of constant height.
- Soft Replace—Polygon features will define areas of constant height.
- Hard Value Fill—Integer attributes will be assigned to nodes and triangle faces.
- Soft Value Fill—Integer attributes will be assigned to nodes and triangle faces.
Use Z—Specifies whether z- or m-values will be used when the SHAPE field is specified as the height source. Specifying True indicates that z-values will be used; specifying False indicates that m-values will be used.

Value Table

Delaunay sous contraintes

(Facultatif)

Détermine la technique de triangulation qui sera utilisée le long des lignes de fracture du TIN.

Activé—The TIN will use constrained Delaunay triangulation, which will add each segment as a single edge. Delaunay triangulation rules are honored everywhere except along breaklines, which will not be densified.
Décoché—The TIN will use Delaunay conforming triangulation, which may densify each segment of the breaklines to produce multiple triangle edges. This is the default.

Boolean

Sortie dérivée

Etiqueter	Explication	Type de données
TIN mis à jour	TIN mis à jour.	TIN Layer

arcpy.3d.EditTin(in_tin, in_features, {constrained_delaunay})

Nom Explication Type de données

Nom	Explication	Type de données
in_tin	Jeu de données TIN à traiter.	TIN Layer
in_features [[in_features, height_field, tag_value, SF_type, use_z],...]	Entités en entrée et leurs propriétés associées qui définissent la manière dont ils sont ajoutés au TIN. Colonnes de la table de valeurs : `Input Features`—The features that will be added to the TIN. `Height Field`—The field from the input's attribute table that will provide the elevation for its features. The z- or m-values in the `Shape` field can be used along with any numeric field. Choosing the `<None>` option will result in the feature's elevation being interpolated from its surrounding 3D measurements. `Tag Field`—A numeric attribute will be assigned to the TIN's data elements using values obtained from an integer field in the input feature's attribute table. `Type`—The input feature's role in defining the TIN surface. The available options depend on the geometry of the input features. For line- and polygon-based surface feature types, the hard and soft designations for the surface feature type impact the way the line or polygon boundary is handled when interpolating a raster surface from the TIN dataset when using natural neighbor interpolation. A hard surface feature type represents a border with a sharp discontinuity in elevation, such as the edge of a cliff, a wall, or a curb on the side of the road. A soft surface feature type represents a border where the elevation is more smoothly defined. `Mass_Points`—Elevation measurements will be incorporated as TIN nodes. `Hard_Line`—Breakline features will define linear discontinuities in the TIN. `Soft_Line`—Breakline features will define linear discontinuities in the TIN. `Hard_Clip`—Polygon features will define the data area of the TIN surface. `Soft_Clip`—Polygon features will define the data area of the TIN surface. `Hard_Erase`—Polygon features will define interior voids in the data. `Soft_Erase`—Polygon features will define interior voids in the data. `Hard_Replace`—Polygon features will define areas of constant height. `Soft_Replace`—Polygon features will define areas of constant height. `Hardvalue_Fill`—Integer attributes will be assigned to nodes and triangle faces. `Softvalue_Fill`—Integer attributes will be assigned to nodes and triangle faces. `Use Z`—Specifies whether z- or m-values will be used when the `SHAPE` field is specified as the height source. Specifying `True` indicates that z-values will be used; specifying `False` indicates that m-values will be used.	Value Table
constrained_delaunay (Facultatif)	Détermine la technique de triangulation qui sera utilisée le long des lignes de fracture du TIN. `CONSTRAINED_DELAUNAY`—The TIN will use constrained Delaunay triangulation, which will add each segment as a single edge. Delaunay triangulation rules are honored everywhere except along breaklines, which will not be densified. `DELAUNAY`—The TIN will use Delaunay conforming triangulation, which may densify each segment of the breaklines to produce multiple triangle edges. This is the default.	Boolean

in_tin

Jeu de données TIN à traiter.

TIN Layer

in_features [[in_features, height_field, tag_value, SF_type, use_z],...]

Entités en entrée et leurs propriétés associées qui définissent la manière dont ils sont ajoutés au TIN.

Colonnes de la table de valeurs :

Input Features—The features that will be added to the TIN.
Height Field—The field from the input's attribute table that will provide the elevation for its features. The z- or m-values in the Shape field can be used along with any numeric field. Choosing the <None> option will result in the feature's elevation being interpolated from its surrounding 3D measurements.
Tag Field—A numeric attribute will be assigned to the TIN's data elements using values obtained from an integer field in the input feature's attribute table.
Type—The input feature's role in defining the TIN surface. The available options depend on the geometry of the input features. For line- and polygon-based surface feature types, the hard and soft designations for the surface feature type impact the way the line or polygon boundary is handled when interpolating a raster surface from the TIN dataset when using natural neighbor interpolation. A hard surface feature type represents a border with a sharp discontinuity in elevation, such as the edge of a cliff, a wall, or a curb on the side of the road. A soft surface feature type represents a border where the elevation is more smoothly defined.
- Mass_Points—Elevation measurements will be incorporated as TIN nodes.
- Hard_Line—Breakline features will define linear discontinuities in the TIN.
- Soft_Line—Breakline features will define linear discontinuities in the TIN.
- Hard_Clip—Polygon features will define the data area of the TIN surface.
- Soft_Clip—Polygon features will define the data area of the TIN surface.
- Hard_Erase—Polygon features will define interior voids in the data.
- Soft_Erase—Polygon features will define interior voids in the data.
- Hard_Replace—Polygon features will define areas of constant height.
- Soft_Replace—Polygon features will define areas of constant height.
- Hardvalue_Fill—Integer attributes will be assigned to nodes and triangle faces.
- Softvalue_Fill—Integer attributes will be assigned to nodes and triangle faces.
Use Z—Specifies whether z- or m-values will be used when the SHAPE field is specified as the height source. Specifying True indicates that z-values will be used; specifying False indicates that m-values will be used.

Value Table

constrained_delaunay

(Facultatif)

Détermine la technique de triangulation qui sera utilisée le long des lignes de fracture du TIN.

CONSTRAINED_DELAUNAY—The TIN will use constrained Delaunay triangulation, which will add each segment as a single edge. Delaunay triangulation rules are honored everywhere except along breaklines, which will not be densified.
DELAUNAY—The TIN will use Delaunay conforming triangulation, which may densify each segment of the breaklines to produce multiple triangle edges. This is the default.

Boolean

Sortie dérivée

Nom	Explication	Type de données
derived_out_tin	TIN mis à jour.	TIN Layer

Exemple de code

Exemple 1 d’utilisation de l’outil EditTin (fenêtre Python)

L’exemple suivant illustre l’utilisation de cet outil dans la fenêtre Python :

arcpy.env.workspace = "C:/data"
arcpy.ddd.EditTin("my_tin", "clip_polygon.shp <None> <None> hardclip false; "\
                 "new_points.shp Shape <None> masspoints true", "Delaunay")

Exemple 2 d'utilisation de l’outil EditTin (script autonome)

L’exemple suivant illustre l’utilisation de cet outil dans un script Python autonome :

'''****************************************************************************
Name: EditTin Example
Description: This script demonstrates how to use the
             EditTin tool to add features to a output of the CopyTin tool.
****************************************************************************'''

# Import system modules
import arcpy

# Set environment settings
arcpy.env.workspace = "C:/data/LAS"

# Set Local Variables
origTin = "elevation"
copyTin = "elev_copy"
inFCs = [["Clip_Polygon.shp", "<None>", "<None>", "hardclip", False],
         ["new_points.shp", "Shape", "<None>", "masspoints", True]]

# Run CopyTin
arcpy.ddd.CopyTin(origTin, copyTin, "CURRENT")

# Run EditTin
arcpy.ddd.EditTin(copyTin, inFCs, Delaunay)

Environnements

Espace de travail courant, Etendue

Informations de licence

Basic: Nécessite 3D Analyst
Standard: Nécessite 3D Analyst
Advanced: Nécessite 3D Analyst

Mettre à jour un TIN (Outils 3D Analyst)

Résumé

Illustration

Utilisation

Paramètres

Sortie dérivée

Environnements

Informations de licence

Rubriques connexes