Algorithm description OD-Matrices
Data Source: Stadt Wien – data.wien.gv.at
OD-Matrix from Layers as Lines (m:n)
The OD-Matrix from Layers as Lines (m:n) algorithm computes the network route-based cost of Origin-Destination relations between the points of two layers (layer m and layer n). Costs components are split up into Entry-Cost, Network-Cost, Exit-Cost and Total Cost (sum of all other cost components). The relation is then displayed as a straight line between the point of origin and the destination point, featuring the costs as attributes in the attribute table.
| # | Mandatory Parameters | Type | Info |
|---|---|---|---|
| 1 | Network Layer | Vector Layer | Geometry type must be LineString |
| 2 | From-Point Layer | Vector Layer | Geometry type must be Point |
| 3 | Unique Point ID Field | Integer Field | Field type preferably Integer |
| 4 | To-Point Layer | Vector Layer | Geometry type must be Point |
| 5 | Unique Point ID Field | Integer Field | Field type preferably Integer |
| 4 | Optimization Criterion | Shortest | Fastest | - |
| 5 | OD-Line Layer | Output Vector Layer | - |
OD Matrix from Layers as Table (m:n)
The OD-Matrix from Layers as Table (m:n) algorithm computes the network route-based cost of Origin-Destination relations between the points of two layers (layer m and layer n). Costs components are split up into Entry-Cost, Network-Cost, Exit-Cost and Total Cost (sum of all other cost components). The relation is then displayed as rows in an attribute table.
| # | Mandatory Parameters | Type | Info |
|---|---|---|---|
| 1 | Network Layer | Vector Layer | Geometry type must be LineString |
| 2 | From-Point Layer | Vector Layer | Geometry type must be Point |
| 3 | Unique Point ID Field | Integer Field | Field type preferably Integer |
| 4 | To-Point Layer | Vector Layer | Geometry type must be Point |
| 5 | Unique Point ID Field | Integer Field | Field type preferably Integer |
| 4 | Optimization Criterion | Shortest | Fastest | - |
| 5 | OD-Table | Output Table | - |
OD-Matrix from Points as CSV (n:n)
The OD-Matrix from Points as CSV (n:n) algorithm computes the network route-based cost of Origin-Destination relations between the points inside a single layer (n:n). Costs components are split up into Entry-Cost, Network-Cost, Exit-Cost and Total Cost (sum of all other cost components). The relation is then displayed as rows in a CSV File.
| # | Mandatory Parameters | Type | Info |
|---|---|---|---|
| 1 | Network Layer | Vector Layer | Geometry type must be LineString |
| 2 | Point Layer | Vector Layer | Geometry type must be Point |
| 3 | Unique Point ID Field | Integer Field | Field type preferably Integer |
| 4 | Optimization Criterion | Shortest | Fastest | - |
| 5 | CSV-OD-Table | Output CSV-Table | - |
Data Source: Stadt Wien – data.wien.gv.at
OD-Matrix from Points as Lines (n:n)
The OD-Matrix from Points as Lines (n:n) algorithm computes the network route-based cost of Origin-Destination relations between the points inside a single layer (n:n). Costs components are split up into Entry-Cost, Network-Cost, Exit-Cost and Total Cost (sum of all other cost components). The relation is then displayed as Lines between those points.
| # | Mandatory Parameters | Type | Info |
|---|---|---|---|
| 1 | Network Layer | Vector Layer | Geometry type must be LineString |
| 2 | Point Layer | Vector Layer | Geometry type must be Point |
| 3 | Unique Point ID Field | Integer Field | Field type preferably Integer |
| 4 | Optimization Criterion | Shortest | Fastest | - |
| 5 | OD-Lines | Output Vector Layer | - |
OD-Matrix from Points as Table (n:n)
The OD-Matrix from Points as Table (n:n) algorithm computes the network route-based cost of Origin-Destination relations between the points inside a single layer (n:n). Costs components are split up into Entry-Cost, Network-Cost, Exit-Cost and Total Cost (sum of all other cost components). The relation is then displayed as rows in an attribute table.
| # | Mandatory Parameters | Type | Info |
|---|---|---|---|
| 1 | Network Layer | Vector Layer | Geometry type must be LineString |
| 2 | Point Layer | Vector Layer | Geometry type must be Point |
| 3 | Unique Point ID Field | Integer Field | Field type preferably Integer |
| 4 | Optimization Criterion | Shortest | Fastest | - |
| 5 | OD-Table | Output Attribute Table | - |
| # | Optional Parameters | Type | Info |
|---|---|---|---|
| 1 | Direction field | Field containing direction values | - |
| 2 | Value for forward direction | user input | input must be referenced to Direction field |
| 3 | Value for backward direction | user input | input must be referenced to Direction field |
| 4 | Value for both directions | user input | input must be referenced to Direction field |
| 5 | Default direction | Both Directions | Forward Direction | Backward Direction | |
| 6 | Speed Field | Field containing speed values | must be numerical |
| 7 | Default speed | user input | (!) sets network entry- and exit-speed |
| 8 | Topology tolerance | user input | Tolerate gaps in network (crs units) |