Clip

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
# Log in
import geoanalytics
geoanalytics.auth(username="myusername", password="mypassword")

# Imports
from geoanalytics.tools import Clip
from geoanalytics.sql import functions as ST

# Paths to the USA rivers and streams data and USA states data
usa_rivers_data_path = "https://services.arcgis.com/P3ePLMYs2RVChkJx/ArcGIS/rest/" \
                       "services/USA_Rivers_and_Streams/FeatureServer/0"
usa_states_path = "https://services.arcgis.com/P3ePLMYs2RVChkJx/ArcGIS/rest/" \
                  "services/USA_State_Boundaries/FeatureServer/0"

# Create a USA rivers and streams DataFrame
usa_rivers_and_streams_df = spark.read.format("feature-service") \
                            .load(usa_rivers_data_path)

# Create an Oregon state boundary DataFrame
oregon_df = spark.read.format("feature-service").load(usa_states_path) \
                            .where("STATE_NAME == 'Oregon'") \
                            .withColumn("shape", ST.transform("shape", 4326))

# Clip the USA rivers and streams to the Oregon state boundary
result = Clip().run(input_dataframe=usa_rivers_and_streams_df,
                    clip_dataframe=oregon_df)

# Show the first 5 records from the clip result
result.select("Name", "Feature", "State", "Region", "Miles").show(5)

1
2
3
4
5
6
7
8
9
10
+-----------------+-------------------+-----+------+-----+
|             Name|            Feature|State|Region|Miles|
+-----------------+-------------------+-----+------+-----+
|       Balm Creek|Stream Intermittent|   OR|    17| 2.25|
|    Juniper Creek|Stream Intermittent|   OR|    17| 5.39|
|        Hay Creek|             Stream|   OR|    17| 4.97|
|     Sutton Creek|Stream Intermittent|   OR|    17| 1.03|
|Long Hollow Creek|Stream Intermittent|   OR|    16| 10.3|
+-----------------+-------------------+-----+------+-----+
only showing top 5 rows

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
# Transform the Clip result geometry to NAD 1983 StatePlane Oregon spatial reference
result = result.withColumn("clip_geometry", ST.transform("clip_geometry", 6558))

# Transform the Oregon boundary geometry to NAD 1983 StatePlane Oregon spatial reference
oregon_df = oregon_df.withColumn("shape", ST.transform("shape", 6558))

# Plot the clipped rivers and the Oregon state boundary
oregon_plot = oregon_df.st.plot(facecolor="none",
                                linewidth = 2,
                                edgecolors="black",
                                figsize=(14,8),
                                basemap="light")
result_plot = result.st.plot(geometry="clip_geometry", ax=oregon_plot)
result_plot.set_title("Rivers and streams clipped to the Oregon state boundary")
result_plot.set_xlabel("X (Meters)")
result_plot.set_ylabel("Y (Meters)");